I think we should start school later because kids come to school tired and cant learn well.
Research says that we learn much better when we are not tired and we are well rested.
Every day people have to get up very early to get to school and then get there very tired. If school were later in the day you could learn better.
But if school started later we would have a lot less time to do our homework and less time to sleep in the night.
Now since school starts very early you will have to wake up even earlier to get ready which makes you even more tired and you don't learn that much