Just can't compare CV with the other things you mention. Tour age limits are very different than a "dinner" age limit. For one thing, I believe they are driven by Insurance. And bigger difference, you aren't already in the park with your family when you go on a tour. At least not the tours with age limits. Not many guests are going to use a park admission just to go to HS just for Club Villain. Some do sure but most are adding it in to the end of their day in the park. Could they add a limit to CV, sure. They can do anything they want. I just don't think they will.
I'm not sure kids are banned from F&W events though. I've never checked as that is always a trip we make without DGD. School going on and all that.
They may get 10 complaints (just an example) from adults who feel kids ruined their night but they eliminate kids from it and they'll get 100 complaints from families who can't go because they are at the park and there is no where else for their to take their kids. Majority rules, or the loudest complainers
Now, they add in a child care option adjacent to the venue, that changes things completely.
All in all it won't make a hill of beans difference to me. We make as many trips with DGD as we do without. We'll just do CV on trips without her if there is a limit. I do find Disney a funny destination for those who are easily annoyed by children. I'd think those who are would have prepared themselves for all the children they'd encounter during their trip.
I would lump this event in with the tours and other things simply because it is not your typical meal; even on the website it is listed as a dining event, just like F&W events. I've never been to the F&W events either, but I remember a thread from last year where people were upset because some of the events were only open to adults. As far as the tours, most if not all require theme park admission separate from the tour cost itself, so that makes Club Villain the same scenario.
I do love your in-park child care idea! For a lesser cost, the littles could have their own little party.
I have 3 littles myself, so I'm not usually bothered by kids at Disney ... After all, it is Disney ... it's kind of synonymous with kids. My only hang-up about this particular event is the kids could have gotten hurt and the CM's were the one's having to save the kids when the parents should have been cognizant of when it was appropriate to let the kids on the dance floor, but didn't seem to care, even when the CM's talked to them about it.
My kids have been eating exclusively off adult menus in all restaurants since they were 6yo. They attended PFTS and MANY other events that by your definition here would be geared to just adults. And they're obviously not alone -- or even close to it.
Excluding kids from an in-theme-park character event just because Disney can't say "excuse me, can you please keep your children off the dance floor during this portion for their own safety and that of the performers" is silly.
Of course Disney can do whatever they want. I just think this would be a stupid -- and very inconsistent -- business decision on their part.
My DD's are adventurous eaters, so food-wise, this is right up their alley. DS on the other hand is a chicken nuggets and fries guy as most kids are ... not all ... most. Of the five tables around us, three had kids and all three had the servers bring out the kid food. The food that is advertised is not normally thought of as being kid friendly, even if we all know there are some kids who will eat it. As I said, if we are able to bring DD1, she will be eating the same food we are, not the kids plate. But I wouldn't bring DS to this for the simple fact that I know he will not eat what is offered and I'm not paying that much for chicken nuggets.
And the CM's were asking the parents to keep the kids off the floor, but the parents let them go right back on the floor. And what would have happened if Disney had actually removed those families from the event since they obviously didn't want to control their kids? Everyone would have bashed Disney for
kicking that poor family out of a fun event that they paid loads of money to attend. And really, Disney is for kids right? What do you expect the parents to do? They were just letting their kids have fun ... Disney can't win for loosing.
It would only be an inconsistent move if this was the first time they had put an age restriction on an event.
Random thoughts ...
1. In character, the Villains are an hilariously acerbic, unscrupulous, downright unwholesome and decidedly un-kid-friendly lot. We're not talking Mickey, Minnie and Belle, here.
And although I've yet to visit Club Villain, I do hope that when I do I won't be subjected to a bland vanilla re-interpretation of those characters contrived to appeal to/placate toddler-to-teen attendees ... and their parents.
2. By the time that a child has misbehaved to a degree that requires intervention by a Disney representative, it is much too late to expect the parents of that child to react constructively to any request for their cooperation in the matter and even later to expect to rescue the evening for other guests.
3. Given the vast collection of character experiences available to families at Walt Disney World, to suggest that a late-evening performance of Club Villain reserved to teen-to-adult guests is somehow discriminatory is, I think, silly.
1. I'm not sure how they behaved with the children at this event, but they were very much in-character with DH and I and I don't mean they were in-character in a Disney "nice" villain type of way. Maleficent completely unnerved me and we only stuck around long enough to get a couple of pictures. Cruella told us the names of the puppies in her set: Pocket, Sleeve and Handbag ... not exactly little kid friendly.
2. Exactly.
3. I agree. This was such a popular event that I have no doubt that they could fill each of the two shows with their respective groups.
Uh... you mean like they are in the movies they star in... aimed at kids and families?
Oh. So I guess Disney has no choice but to let the kids endanger themselves or the performers, then!! Oh just ban them!

This seems an odd solution.
I didn't say discriminatory -- not sure if anyone else did? I think it would be a bad business decision, in conflict with how they handle PFTS, dessert parties, etc etc that have food, alcohol and some entertainment.
No, they didn't seem to us as if they were their "movie" characterizations ... they were a bit darker than that with us.
The problem is that the CM's tried to quietly get the kids to contain the children ... but that's not doing enough ... But if they had asked those guests to leave, they would be seen as going too far ... Then if one of the children or performers had gotten hurt, people would be screaming that Disney should have made those guests leave the first time they caused an issue.
We obviously all see this from different angles, so we are apparently not going to agree on this, but I really think splitting the shows would be a good move for everyone. Those who want to be able to bring their littles can and those who don't want to dodge the littles don't have to. Early show for families / late show for 13 and up (or 18 or 21 or whatever). Compromise.