I’ve been struggling with this question myself for my entire life and I figure I’d ask to gain some perspective.
Edit: Thanks for the responses. My dad was physically, verbally, and mentally abusive. He even physically abused his pet dogs. His dad abused him, so I guess it is a cycle of fathers hurting sons now that I think about it. He never drank, but he smoked religiously. And he was a high school drop out.