It would probably depend on why the 25-year-old man is a virgin; whether it is because of religious convictions against premarital sex, hasn’t met the right woman, too busy with studies to pursue a relationship, low sex drive, or unable to attract a partner.
I'll grant you that it would "probably depend" in the case of "low sex drive." In every other instance ("religious convictions," "too busy," "unable"), 25-year-old male virgins are certainly nevertheless unhappy/frustrated.
And there is no "too busy" when you're a red-blooded 25-year-old man.
Regards,
I’m still waiting at almost 34. I understand frustrating for sure.