> On the one hand, not having one seems like it could cause isolation That may be true for banning individuals, who might end up excluded from activities every

> On the one hand, not having one seems like it could cause isolation That may be true for banning individuals, who might end up excluded from activities everyone else is doing. A blanket ban would have different effects, since it's excluding everyone, who can find other activities (or ways around the ban) to do together. You're definitely right about practical/logistical problems though.