The average age at which a male loses his virginity is 16, so frankly, 15-year-olds should be having fun and trying to ascend instead of posting here. If they're still virgins at age 20, they can come back.
Which would be a total valid reason imo. When I was 15 I was bluepilled af but at least never had feelings of suicide...so much can still happen at that age. Only when you tried and triend and tried again and still no positive outcome you should consider yourself incel. Not because you got rejected by your oneitis and are heartbroken. Every young person experiences that at one point.