I often read the advice section of local newspapers.
Here in Peru we bathe nude in semi-deserted beaches, I make love to my girlfriend over a large towel in the beach, we males bathe naked in swimming pools, are naked in communnal showers ans lockers.
In Latin America, we swim naked in pools, we do some kinds of exerciss naked, we are naked inSummer in semi-deserted beaches, we have sex naked ,ha ha, we shower naked in communal showers, we are all uncircumcised, we retract foreskin to wash and soap when showering.
With the exception of sensitive age of 14-16 I never had much problem with separating nudity and sexuality.
And there are many other reasons, including the diminished presence of fathers in many households.
The boys change clothes together and shower together.