> Any child old enough for a school bus is also old enough for a self-driving taxi (age 8 or less). So that's most school/sports/activity runs out of the picture. And if you live in a city, your kindergarten and primary schools is generally 10 minutes' walk away or less.

Thank God I won't ever become a teacher. I can already imagine kids saying "I forgot my homework in my taxi and couldn't call it back in time"...