Extending the party of youth is roughly one of the benefits of social welfare. When we took the children out of the factories in the 1920s, we extended their youth. When we sent them to college, we extended their youth. When we economically constrained them with high real estate prices, we extended their youth.
Extending youthhood is fine, so long as we do it appropriately. For example, if we did it right, someone entering retirement enters a new youthhood of carefreeness. If we do it wrong, someone enters youthhood in theirs 20s as a dependent of their parents. There's a lot of wrong versions of the last thing I said, where people are kept children in academia to be parented indefinitely by tenor.
It's delicate. We want to provide as much youthhood as possible in a good way, if we can.
As to your first point, you can only be speaking of white men. To this I'll say, white men that come from the same economic situation should have access to the same scholarships. That's a easy one to fix. If you are working class then you are working class, this life is hard enough already.