Unlike what many people want to believe (probably due to the need for validation), sex is something important for which you need to be prepared both physically and mentally as, even protected sex, can fail and you can end up getting pregnant or catching a sexual disease, and of course, all the psychological consequences. So, it's not only ok to wait to be prepared for it, but it should also be encouraged as "I'm horny" should not always be a valid reason to have sex, particularly if you're young.
So no, there i nothing wrong with being a virgin.
On the other hand, if an adult is unable to find a suitable partner after certain time, and such person is not a peaky bitch with impossible standards, there could be even medical reasons like depression, anxiety caused by some traumatic episode, and many other disorders that can lower your libido and stop you from having sex so you might need medical help and there is nothing wrong with that either.