I've also thought this. I don't see why mother/son relationships are considered to be so fowl. As long as the son is over the age of 18, and they never reproduce, what's the big deal? They're both grown ups.

It's abnormal sure, but society is progressing and things which were considered abnormal are now becoming more mainstream. Like transgenderism. Even homosexual relationships are theoretically abnormal according to the laws of nature, but its normalized in modern society.

I'd never have intercourse with my mom though. I'm not sexually attracted to her that way. But the thought of borderline sexual activities like what I've described above doesn't really freak me out that much.