[Melusine]

I would say that's his own choice.
It depends on whether he intends to remain celibate for all his life or until marriage. In the latter case: fine, if that's his choice. In the former: I would wonder if there's some traumatic experience that brought this belief about, and think that maybe he should try and come to terms with whatever events happened to him. In any case, who am I to say how other people should live their lives?