Like do they have an apartment somewhere near their turf which they go home to?
Would they be able to walk the streets alone without getting wrecked cause they're in a gang?
Is it possible they have a wife or girlfriend? husband and boyfriend in the Lizzies case...
Or do they just stay with their gang at the hangout until it comes time to waste more heads?
This is only an opinion, there is no wrong or right answer as it's only a movie

I reckon some would share apartments near by and so if trouble arises they have more then one gang member close by to come help so they could still protect their turf, because if they stayed at the hangout all the time and never got sleep I think they would be to tired to fight.