Good. Because many of the Disney CMs are unionized; plus I can't see a company that needs the daily level of staffing WDW does, regularly changing schedules on a daily basis.
First thing, each individual restaurant determines its own staffing needs, so the size of WDW doesn't come into play. The size of Le Cellier (employee-wise) does.
Secondly, union or not, since I am not privy to their contracts, may not matter a whole lot. I've personally been in jobs where I, or others, were either called and told not to come in, told to come in late, or sent home early, all due to it being a slower day than normal. Of those, one was indeed a union job.
The full day can allow them to simply say "Hey Bob, we're not going to need you tomorrow."
So, again, it's conjecture, but it's actually something that any rational business would consider and it's the ONLY thing that makes sense to me for the "full day" deadline (e.g. cancel Tuesday for Thursday's meal as was reported by the articles calling up Disney itself). A shorter window would accomplish the SAME EXACT stated goals of the "full day". They would know, well ahead of time if people were canceling and be able to judge the number of walk-ups they could absorb.
Again, I could be wrong, and I hope so, but it's nagging me in the back of my head.

How very nice. So my family should not enjoy a character meal because we do occassionally have illness in our family? No I am not sure my kid will be sick that is the point with kids you never know and yes they could get sick at WDW on a day we have an ADR.

So l will keep my
ADR no matter what. Now how will you feel eating next to a sick kid or a kid having an autistic meltdown.
If people want to be cold and unsympathetic towards others then I guess I shouldn't be concerned in sparing their family when I trek my family in.
So now problem solved yep we will keep our promise and all those around can suffer.

And obviously part of this is with sarcasm as I wouldn't drag a really sick kid but I might now risk a kid who may seem slightly off and if he loses it on Mickey wel oops.
TBH, no you shouldn't. Of course, all those other diners who aren't cold, harsh, judgmental, etc will end up having a reduced experience, and that's bad. Maybe we can request to sit right next to them!
I guess I'll be advocating to take sick and melting down children into restaurants now, since we don't want to break the rules do we?
Are there really that many sick kids every single day??
If so...I think there are bigger issues than ADRs.
I'd estimate that there are several kids who don't feel well at some point in their vacation every day. Not talking anything serious, but overstimulation combined with exposure to a climate they aren't used to combined with different water and air quality than they're accustomed to can make anyone not feel well for a day or so. Doesn't mean they'd be running out to the doctor, but it could alter their plans for a few hours, enough so that the 5:30 ADR they made doesn't sound so appetizing now. Of course, they should have planned for all that their first time there and magically known how their own bodies, or the bodies of their kids will react. After all, we all intimately know this stuff, so it should be no problem!
I'll make sure to use the sneeze guards for you next time I'm there

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