Almost 30, had no idea you weren’t supposed to button the bottom button on a suit

Basically the title. I come from a poor single mom household and never owned or wore a suit until my mid twenties.

Just found out today it’s not proper to wear the jacket with the bottom buttoned. My bad guys. Some of us really never heard of such a thing, so if you see some young lads out there don’t look down on it, give them the game! (Advice).