A lot of people are still a virgin in their 20’s! Who are you to judge? Everyone does things on their own time. Having sex at an early age is nothing to brag about. Many regret having sex too early because they didn’t really start to enjoy it until they were older anyway. Having sex at 14 and 15 is really too young. Your brain is still in the developing stages for god’s sake! And so is your body. It’s actually beneficial to wait until you’re in your late teens (at the least) because you understand sex more and you’re mentally/emotionally prepared to accept the responsibilities by then.
There is no “normal" time to lose your virginity and shame on you for trying to put someone else down for that. I’m embarrassed for you, not her.