My kids are late risers and slow to get moving in the morning. So, I usually have a couple children arriving while my kids are still eating and in pjs. If they arrive before 8, I have no problem letting them sit and finish their breakfast with my kids. However, if it ever started to become more work (as you are saying it is) I wouldn't hesitate to not allow it. All the kids who come with breakfast, it is already prepared (a yogurt, banana etc.) so it is no extra work to me at all. I wouldn't prepare something and I wouldn't serve breakfast as part of my program