Does porn use cause erectile dysfunction in young men? Not a single peer-reviewed paper shows that it does.
What does predict ED in young men? Alcohol & tobacco use, poor mental & physical health, and lack of sexual experience. @DrDavidLeyhttps://www.psychologytoday.com/us/blog/women-who-stray/201308/erectile-dysfunction-myth …
Yes, that's a reasonable default hypothesis, unless we get good evidence otherwise.