Unless we where going out (park/walk etc) my boys never had to follow the daycare schedule. they are allow to watch tv, play in their rooms, and when they where young enough nap in their own beds. They are not being paid to entertain my clients children, this is my business not theirs.
My boys where allowed to play with the daycare children if they wished and join in any of the activities.

I have terminated clients who insisted that I USE my boys as play mates for their children. (They where very aggressive about it). Most clients understood once I explained that they hired me not my children.

As for it being hard for your child to understand, I can understand that and I feel for her. Unfortunate not every child she comes across in life is going to be doing the same thing as she is or even want to be her friend. Its just how life works.