neuroscience says 25-29 for female brain, 30-35 males.

Science, even neuroscience, never says anything, it suggests things based on evidence but saying implies something is proven. However, that isn't the point or within the ability of science.

Welcome to the mammalia Class. As a minor, did you consent to your caregivers’ care methods? Were you allowed to adult? Get educated?

Right which is exactly why things like Youth Liberation are so important. There needs to be more freedom and rights for those (fairly or unfairly) labelled youth. They need to have more autonomy over their bodies and other rights in the world.

Yep, are still trying find a solution for this quandary

Ok but at that point, why still use "vanguard"? I'd understand wanting to reclaim it to mean something other than its historical meaning. But as it stands, when most people hear "vanguard", they understand it to mean Lenin/Stalin. And I think anyone building a revolution based on a "vanguard" broadly speaking would need to be super fucking careful to not fall into that trap themselves.

Welcome to the mammalia Class. As a minor, did you consent to your caregivers’ care methods? Were you allowed to adult? Get educated?

This is why child liberation theory is a thing. You're right that we give parents power over their children, and an anarchist analysis would say that's a bad thing.