Not to mention the kids over-compensating for your restrictions, and doubling down on the things you forbid/discourage them from - whether covertly behind your back, or after they grow up.

Like a strict parent whose kids end up doing drugs and partying as soon as they can leave the house, or even the opposite, some "hippie" all-too-liberal parent whose kind grow up and seek strictness and discipline, and e.g. turn religious or join a cult, or find some abusive partner who gives that to them.