Rashguards as athletic wear — has the BJJ-only label loosened up?

I see people wearing competition rashguards as gym shirts. Walking around in their team kit at the grocery store. Is that fine, or is it the gi equivalent of wearing a marathon medal three weeks after the race?

I genuinely don't know what the etiquette is in 2026. Used to be: wear it for class, take it off for everything else. Now Instagram-comp culture has made the rashguard part of the look.

What's your gym's vibe?