Idk if lack of uncensored pornography is what's holding them back.
I was joking about that one, developed countries with that have similar problem
the availibility of porn is correlated to people having less and less families, what are you talking about ?
Also the Japanese quite obviously do have porn albeit censored, no one thinks that changing that will help, if anything Japan needs to restrict acces to pron and virtualized or parasocial relationships.