More importantly, how will people learn basic job skills, like "show up on time" and "do what you're told" if all the traditional first jobs are automated?
School is a lot more lax about it because it's so much more difficult for them to kick you out.
When I was at school we would sometimes turn up over an hour late or just skip the day altogether. Was a culture shock when I started my first job and got a roasting for being 5 mins late.
Ask any teacher, and he/she'll have plenty of stories about parents who do nothing to teach their kids these habits, or even exactly the opposite of that.
Plenty of jobs don't have set schedules or require you to march lockstep. But even CEOs of tech companies can't say to potential clients, "sorry I missed that meeting and didn't call, I wasn't feeling good..."