Strip clubs have been around for a long, long time. I assume in a time before the internet and being able to see naked women on demand, going to a strip club was a more novel activity.
It’s also a social activity. Why do people like going to the bar? I’ve always thought going to the bar was stupid, but plenty of people have fun doing that. A strip club is sorta like a bar with near-naked women dancing. I’ve met women who like going to the strip club, either with other women or with their guy friends.