Comment by sologoub

That would not fix the coordination problem - if the family includes one of each (elementary, middle and high school kids) you still have to make breakfast for them, get everyone ready and head out. Let’s say they all don’t have to leave at the same time, but most other activities have to be coordinated and the sheer noise in the household will wake people up, not to mention it’s a bit easier to feed all 3 kids together.