Humanity is supposed to be evolved beyond such things in the 24th century and it is a Starfleet vessel so I'd like to think Barclay being way too into the holodeck is a rarity rather than the norm.
We don't know what humanity is supposed to have evolved beyond. Prudishness, perhaps? Or the need to declare some addictions undesirable while catering for others? Poking into others' private lives for entertainment?
Worf suffers from a nudity taboo in ST:NEM. Is that a Klingon thing? Hard to imagine. Is it a Neo-Belorussian thing? Or just a Worf thing?
Who else has been uncomfortable without clothes in public? Any of the humans? Riker ought to have gotten used to it already - or was that the reason he dumped Troi some time before TNG? Data can probably fake it, but is that the reason he chose to wear Kivas Fajo's clothes? Picard doesn't appear bothered. Wesley? No examples come to mind. LaForge? As said, X-ray vision. Crusher? Pulaski? O'Brien?
Timo Saloniemi