You're talking about a population of 12 to 18 year olds. Even among the most responsible and least-easily influenced of them, social pressures absolutely dwarf any abstract concerns about corporations knowing a bit more about broke-ass you to try and sell you things.
Most of this population will take a short term gain for an uncertain consequence a few minutes later. You're talking about short term gain versus consequences that they may view as inevitable and occurring decades away.
These are exactly the population that should be protected. If you wanted to give them agency, which I support, let them manage their own whitelists instead of throwing up hands in defeat.
The future is already here, trends are not reversing:
https://www.latimes.com/business/story/2021-11-09/column-tra...
We can teach them to protect themselves, pretend the problem doesn't exist, or say "aww shucks, all the cool people are being violated."
But, it doesn't become a concrete, visceral thing until you inspect a no-script menu while browsing a news site. Or run Little Snitch on a freshly unboxed Mac. Or going to a "white pages" site and see the last four addresses of your family members. Salary info, current whereabouts, criminal history, are a fee away.
It's a different world.