Yeah this would not surprise me in the slightest. They say 80% will have no/or mild symptoms so it only makes sense.
I was briefly sick after hanging out with my sick dad during that time. Felt like crud for a couple days with slight fever, I fought it off quick though(I don't usually get sick for long stretches).
He was still playing music and singing even though he felt like shit(he is retired and playing guitar and singing is his hobby/passion). So he is singing and jamming in all these small bars and breweries and spreading da covid about. Ironman performer.
Passed thru Oregon and California already, December January ish. I know dozens of people who had a doozy of a flu in January here, Old people and young people.
IMO a good chunk of the population already has herd immunity rocking.