I worked with plenty of students that could. In the last few years, I had many students that were taking community college classes online with no adult supervision. It was all on them to ensure they did their work and attended classes.

It works in many other places. I'm looking into something called Brave Generation Academy for my kids for the high school years. https://bravegenerationacademy.com/home

We clearly aren't ready for any sort of change in how we school in the US. Between gun violence and a fundamental lack of trust in people, both students, educators, as well as institutions...we have very low social trust.

Judging from the reaction to my comments, it's clear that most people are super happy with how school worked for them and how it works for their kids. I'm in the minority.