> Before that, I was actually one of those sickness manchilds that honestly twice a year would almost be unable to function for an entire week.

That makes sense. All the COVID prevention steps everyone took would prevent other diseases as well.

> I've been casual as can be, never touching a hand wash squirter, going out in SF outdoor and indoor dining if they didn't check,

I don't know why people are proud about not washing their hands. That was gross pre-Covid too.

> Almost no one has gotten covid of any of my friends/coworkers

Alternatively, you and your friends are fairly young, caught it, were somewhat asymptomatic, and spread it to everyone you met. After all, you don't seem to have tested at all.