Not sure exactly if he lives in his parents garage or rents the place out from someone else. Best I remember years ago his parents lived in a subdivision and he'd hunt out back of it. So don't think he's living with them.
Either way, how many kids should he have to justify killing 20+ deer a year? What is the quota on kids to deer ratio? Who cares what his living situation is or how many kids he has or didn't have or what his marital status is. Sounds to me like he's got it figured out. No kids, no wife, hardly any bills. Hunt and fish anytime he wants.