The challenge is that the environment that is predisposed to produce teenagers with a well rounded educational foundation and well developed critical thinking and studying skills... tend to be affluent households that can afford to move to areas with great schools, and send their kids to a constant stream of extracurriculars.
That’s not to say it’s impossible to succeed in adverse conditions, but it’s inane to pretend conditions are on average not more adverse for certain populations.
There’s a fundamental question of identity some colleges are struggling with. To put it in exaggerated terms - do they want to be ivory tower institutes of learning, or do they want to be a kaleidoscope of all of the next generation who do not want to go on to trade work?
For people who want to go to college purely for rigorous academic study with the brightest young academic minds, this is going to be a shift. The populations will be formed less so based purely on that narrow selection criteria.
It’s a progression which has been happening for decades, but as it seems in many things, the rate of change is accelerating.