Yeah, I can really see that line of logic. Considering the level of atomization our societies deal with your first group will be your only group. Ideally you would have a some barely overlapping social circles in a coherent meta context, so your political activism and dating pool would be a different thing, but with people who are on the same page as you.It’s usually cause when unmarried / non going steady women get involved the group disintegrates due to tons of infighting. Therefore they think the best strategy is to prevent the infighting in the first place