I used to provide breakfast as part of the fee but also charged a couple dollars extra per day than others. It worked well as they all ate with my kids and often I skipped morning snack other than a quick drink. But what I found was kids were hungry when they got up and mom was giving them junk such as a granola bar to eat on the way over and then they didn't want to eat breakfast and then as a result were hungry mid morning. Went to a had to eat before coming and then did a 9 am top up so we could make it through till lunch and that worked much better.