QS doesn't care, TS some restaurants will let an adult order off the kid's menu and charge kid's price, some will charge adult price, it is up to them. I eat QS kids meals for breakfast and lunch all the time (not for saving money but just cause I don't eat alot) and tend to order appetizer and salad at TS (again not a big eater) but I have been known to order a kids meal at TS just because I like the choices better (Prime Time I'm looking at you)