why do 80's people hate gaming

My dad is a typical 80's kid he was never introduced to gaming. I have boards and after that im planning to study for JEE and im going to build my own pc and that has been my dream since i was in 5th but my dad didnt allow to build one. Im so fed up i didnt play games this whole year and i tried explaining him but he wont approve.
Still im gonna rebel and build one cuz i have support from my mum