Of course it's widespread! There wouldn't even BE stripclubs if there wasn't a steady stream of punters.
To further Collidascopes excellent post, I am inclined to argue we are just as repressed sexually as we always were. Now bear with me here as it runs counter intuitive to the dominant sexually permissive narrative. Sex is great, it's pleasurable, it's relaxing and it bonds us. However modern sexuality is journey we're actually railroaded to walk alone.
Individual sexual fantasies are built solo to be indulged by a partner, rather than as journeys taken together with destinations shared. Our whole language is filled of things being done to people and not with them.
Casual encounters have entire staid and routine patterns. It always involves PIV as if that is the only conduit through which male and females can reach one another.
Yet if one doesn't buy into this vision that's prudish? Well I'd argue anyone that advances that is not only deeply sexually repressed themselves, but seek to repress any and all competing paradigm of human sexuality. If that isn't pure unvarnished repression I don't know what is.
Now let's take strip clubs a woman who can dance is sexy, so are men who can too, and whilst we have male strippers we haven't built anywhere near as many temples to the erasure of preferences of men as we have for women. As that what money does it erases the significance of preference. Sure the odd female stripper may enjoy doing it, but the whole enterprise is not contingent on her enjoyment. In fact we don't even really care anymore.
Our preferences ancor each other to one another. When we let money dissolve that ancor female sexuality gets a double dose of repression, and male sexuality spirals off in chaotic and destructive directions.