I will note that at least in urban areas, I see kids ubered to school on odd days ... mostly at poorer communities where parents have to work on a random day and still need to get their kids to school. But yeah in the better off suburbs I don't see it happen ever... then again there is more carpooling for those.

There are actually some non uber specialty services out there that claim to do background checks, have extra training, and etc that focus on moving kids or even vulnerable adults around. I don't know how widespread those are.

If my kids could just show up at the door that would save me hours every week.