The best way to protect against gangs in your family is to ensure that a FATHER is present in the life of young children. The effects of having a father that is in your face everyday and cares enough to punish you cannot be stated enough.
I'm living proof of this.
That's great and all that, but this is the real world. How are you going to force fathers to stay with their kids. And I don't think being fatherless should be used as an excuse, this has been thrown around so much, that in essence it becomes a self-fullfilling prophecy. Plenty of children without fathers, don't end up in gangs.
Teach your kids early, and often that skill-at-arms is an indispensible support of Freedom, and knowing who to kill, when, why, and what to tell the Judge later, are all presonal duties that come with the territory.
And DO NOTE I said "kill"; if your plan is not to guarantee that the target meets God NOW, don't even bother pulling your piece. Artsy, fartsy shoot-to-disable moves are pure Hollywood, and the first step toward missing your target entirely, which -- when it really counts -- is likely to get you good and dead.
Determine to kill the assailant, or just plan to be a good little victim -- like ones in the obituaries.