I've heard of this several times.
In fact, some sociologists claim that young males do not go on dates anymore, because porn is so easy.
How can a real woman compete with a guy's wildest fantasy ever? Which he can get through porn.
Those situations are simply never going to happen in real life.
What are the odds that a librarian is going to suddenly lose control, toss her glasses, let down her hair, and go wild?
The answer is zero. That is never going to happen. But it happens all the time in porn.
And that's the issue. Real life cannot compete with a fantasyland in which reality is not really a factor.
Repeated exposure to crazy fantasies where anything goes over a long term makes real life actually boring.
This is one of the reasons Britain, and several other countries are putting extreme restrictions on porn so as to make it not so easily available.
When you combine all of the legal and political issues involving sexual interaction with partners, combined with the absolute deluge of free porn available on the internet, this will affect dating and social interactions in significant ways.