When I was young my parents and grandparents use to tell us that breakfast was the most import meal of the day. They would force us to sit down and eat. As I grew older and was living on my own, I would never eat breakfast, but I did make sure my daughter did. As a child. it is important to eat in the morning. It helps them concentrate at school, helps them grow, and if they don't eat their body will be hungry and they will not function correctly.
I feel as an adult we understand our bodies better than anyone else. It is hard to eat in the morning when you first wake up and you're not hungry. It is fine to go for a few hours until your body tells you that you need to give it some food for energy. I can't eat when I first wake up in the morning, but 2 to 4 hours later, I need to eat. Our bodies will tell us when we need to feed them and we can regulate our eating habits according to our need.
A child will really need to eat in the morning because they are growing and when they wake up they need food to get started. Normally children, when they are younger, will need to eat at least 5 times a day. In the morning, mid-morning, noon, mid-afternoon and in the evening. This helps them to continue to grow because their bodies need the extra food to grow by.