While I wouldn't be offering breakfast to my DC kids I can understand why in some cases it is legit to ask. My 2.5yr old wakes on her own at 8am (goes to bed for 8pm). She cannot stomach food for almost an hour after waking. If we had to get her to daycare in the morning it would be a disaster. We'd have to be waking her before she is ready and would have to force food into her when her stomach is just not ready for it. She goes to nursery school once a week and I dread those days as we need to get food into her right away!
I suppose she would adapt if we had to do it daily...but some kids just do not wake up hungry. Right now I just serve breakfast at 9am and it is a solid meal in place of a snack for DCG. Then they wait until lunch.