When I used to belong to a gym in Los Angeles, one reason I never hesitated about being temporarily naked when undressing and dressing before/after my shower was because I wanted any teenaged or younger boys (who would sometimes use the locker room, although not always to change clothes) to see that it is totally normal for men to have stretch marks, cellulite, and acne scars -- and not to view the chiseled and blemish-free male bodies as "the norm."