@WIY “The kids hang out motzei Shabbos because the hangouts are there if there are no hangouts they won’t hang out.”
This is the epitome of naivete. There have always been and will always be hangouts despite whatever you or anyone else says or does to the contrary. v’ain kol chadash tachas hashamesh. This does not mean that nothing should be done about the situation. Extra seder motzei shabbos may work in some yeshivos/batei medrashos but many kids need to the time away from school to chill out and recharge their batteries. By shoving this down their throats you may be causing more harm than good. I would agree with the concept of creating something for the kids to do whether it is basketball or some other sort of recreational activity. Many communities have successfully implemented similar ideas and it is time to expand those programs. The goal is to have voluntary compliance as opposed to thinking that making rules will solve all of the problems.