It was when I was a kid, at least in my family, but my folks were from the rural south, and grew up without running water. I think most of the other people in my neighborhood probably bathed more often, by habit. And I would guess that training in the armed services taught most men to bathe or shower more frequently, when they had the opportunity, of course. And our bathroom didn’t even HAVE a shower -— just a tub, as was common in many older homes.
[It was when I was a kid, at least in my family, but my folks were from the rural south, and grew up without running water.]