Yeah smart parents have smart kids. But if you don't go to school you wont know shit. There's tons of jackoffs online who run around bragging about how theyre the smartest people in the universe only to immediately get pissy when questioned.
I was sorta one of those people, easily coasting my way through public school thinking I had the god gene only to look at any advanced college mathematics and realize I wasn't as smart as I thought I was. "I'm really smart and the only reason I don't get good grades is because I don't care enough to apply myself" is one of the biggest plagues this generation has. It leads to avoiding obstacles and challenges which then makes you lazy and unfulfilled.
I really wish I took higher difficulty classes in highschool when I was still more malleable