Let me first second this but then also address the last sentence specifically. The only thing "detrimental" to virginity is your own comfort with it. In other words, it's essentially like your internal measure of how susceptible you are to peer pressure. Let's say some virgin gets an escort and they have sex. Then what's the difference between you yesterday and today? Yesterday you were "abnormal" and today you're "normal"? I'm sure most rational people would identify that this makes little sense.
The most frequently cited reason to randomly have sex -- whether someone is a virgin or not -- is so that you will not be awkward with the person you actually love. That's hilarious. First of all, as I've said before, if the person you actually love can't tolerate going through the process of the two of you learning to have sex with each other, then you don't love each other. Second of all, who practices on random people to prepare for your "true" love? Talk about monster rationalization (and pretty poor reasoning), but that's the best that people could come up with. There's also this widely-circulated statement that "actually, a man/woman would be turned off by a woman/man being a virgin because they're so bad at sex." This is usually used to cajole someone who is a virgin to have sex, interestingly enough, since I thought nobody wanted to have sex with them. It's basically people trying to drag other people down to their level. (By the way, this argument is also followed by "oh, and expecting someone to be a virgin at x age is unrealistic," which is also hilarious. You can see that people are just throwing arguments on the wall and seeing which one works.)