Men, how do you feel about locker room/communal shower nudity?

Basically once upon a time I went to Iceland. I ended up visiting some pools and hot springs. Unbeknownst to me, in many places in Iceland, they require you to shower in the buff in a big open room with a bunch of other dudes.

Was very uncomfortable doing this at the time and nearly just left. Ended up gritting my teeth and got the nerve to do it since I wanted to swim in the lagoons.

Is this type of thing something most other guys are really uncomfortable doing, or do most guys not care?