Most Helpful Girl
I suppose it would depend on someone's culture/upbringing as well as their social circle, but in my honest opinion, I think it's because people see "normal" as relative to their personal beliefs/prejudices.
I also suppose it may be because of stereotypes. A man who is single for most of his life may be viewed as a non-committal bachelor who spends most of his time sleeping around or, as you said, someone who is unable to garner any interest from the opposite sex.
Women don't seem to have a stereotype for that. The most derogatory thing would be "Cat Lady".
Most Helpful Guy
you are what it should be like.
i think most people are sluts. people who have casual sex and obviously outside of their relationships. they are sluts but this sexualized culture has become so normal that people are offended by the truth.
i m like you. if i dont like anyone, i m literally sexually abstinent. its been this way for years. i get girls that show interested for relationship and sex because i do have them for company and my friends think i m an idiot not sleeping wiht them. these are the same people that cheat and screw anything that looks decent.
keep to it, its not socially wrong. this just goes to show how degenerate/godless society have become.
when people who sleep around get older, they have a waaay higher chance to cheat and crave polugamy. trust me, you are valued over the typical person who sleep around and you'll realise this more and more.