Disregarding the means, who are these teenagers and why are they — as opposed to other people of different ages possibly behaving badly, or "badly" — considered

Disregarding the means, who are these teenagers and why are they — as opposed to other people of different ages possibly behaving badly, or "badly" — considered so unsuitable for many places? In thirty years or so it's these same teenagers who will be making and governing the new rules. I wonder if, upon their time, they will appreciate a more free acceptance of people themselves.