It’s okay to have sex. It’s okay to not have sex. It’s okay to lose your virginity at a younger age, and it’s okay to be in your twenties or thirties and still be a virgin. It’s okay to be a virgin at any age.
It’s okay to reject the concept of virginity entirely as a heterosexist, usually sexist, and pretty much useless idea. It’s also okay to create your own definition if you find it helpful to you. It’s not okay to judge others based on it.