Sometimes it's good for people's expectations to be raised but this one isn't healthy.

When I've seen women argue against porn, I've also seen men argue that women just don't like the fact that they're expected to do more during sex. Sure, it's kind of a running joke that women don't have to try in bed so I can understand where they were coming from but most women won't and don't want to act slutty for any odd man. A slut, here, being a woman who's comfortable with doing a lot of things during sex for the right man. So, when porn-sick men have high expectations for every woman, they're going to be disappointed most of the time and maybe even struggle to stay erect because it turns out that most women can't actually fold themselves up like a chair and put their legs behind their head. We eventually have men who expect most women to do things that they either can't or don't feel comfortable doing and, because most women can't meet these expectations, men return to porn instead and ignore real women.

For those who'll ask, "what about the women who watch porn?", they aren't in the clear. It's safe to assume that they're a minority in comparison to porn-sick men but they develop unrealistic sexual expectations in men also i.e. every man can last an hour or every man is 8 inches and above. Likewise to men, they approach sex with high expectations and are left disappointed.