Do all kids dad act like immature adult or is it just mines?

My dad is super self centered, and makes fun of my brother. I stay quiet at dinner so I don't become a victim to his wrath. He's so immature and laughs at people that look weird and I used to when I was young because he taught me it was funny. He is the worst person I know. I feel so bad for my siblings. My older brother dropped out of college and did some drugs. My dad ruined him. My younger brother is sweet and I try and save him from my dad but sometimes I can't. I'm in my room 24/7 because of the monster in the living room.

Nope. I've got an ex who thinks that parenting means spending 30 mins with the kids once a month, but only if it doesn't get in the way of his social life. Then he biitches because they got fed up with him letting them down and don't want anything to do with him anymore.

Only where there is very bad, inadequate and NEGLIGENT PARENTING.