No, I don't agree that it should be adults only.
Intriguing idea. My son has unique, never-taught, ideas ALL the time.
What are you referring to with the PP mention?
Liquor laws in WA are such that many of the restaurants we like to go to are actually bars/brewpubs that also sell food. Law prevents minors from going right up to the bar, or into the exact bar area (at our fave place the separation line is where the horse stalls once were in the old firehouse, so there are openings and there's more open space than actual wall), but in the places they are more than welcome until a certain hour.
Some of my best, warmest, memories of being with my parents were in lounges. Listening to my aunt's husband play with his band at the Grand Canyon hotel's lounge. Hanging out at Hog's Head Inn (pub?) in Carmel CA when Clint Eastwood owned the place, drinking Shirley Temples and feeling so grown up at 11, talking maturely with my mom and stepdad... And DS LOVES going to the fave place that was an engine house, and having an Izze soda (safe ingredients for him and tasty) with his dad as I have a brew. He feels the same as I did...it's a special thing to get to be a grownup along with your parents before you're actually a grownup.
Disney cruise ships have FREE (or "included") daycare places for kids. WDW and DLR do NOT. That's the difference.
And isn't the piano bar at BW for adults only? So there is a place. One place, but still...a place.