What people are lamenting is that most teenagers do indeed curse and act ridiculous (as do lots of adults), but most social norms demand straightening up and toning it down when, say, standing in an elevator with a frail old lady. A child who is not taught this, or does not know this, or who knows it but does not choose to do it (and is given a pass) may have a 'fun' time in the moment, but is at a disadvantage in being prepared for the future. This child is also a real nuisance, and , I think society should push back and both teach and expect pretty basic manners (like don't repeatedly shout "MF" to your friend in a crowded elevator over said old lady's head). Obviously families can prepare children; schools, whether Sidwell or Wilson can communicate societal norms with character education. The kids may roll their eyes, but sheer adult persistence pays off in modifying behavior to a socially acceptable degree.