why do some poker players seem to fold way too much preflop

I keep running into players in live games who just fold everything except premiums, even in late position. It’s weird because I’m not talking about the tightest nits who are clearly just waiting for AA or KK. These folks will look at something like 77 or A10 suited on the button and just muck it without any pressure before them. Sometimes the blinds are passive too, so it isn’t even a tough spot.

I get not wanting to spew chips with garbage hands, but it feels like these players are leaving money on the table, especially when no one else at the table is putting up much resistance. Makes me wonder if I’m missing something or if they’re just too risk-averse. The pot odds and position advantages just get wasted a lot. Curious if this is more common in live low stakes or if it’s a psychological thing I’m not picking up on. Would be interesting to know what others have seen.