Teenage love is an essential milestone in one's life, and it will teach you a lot about what actions to take and what expectations to have in future relationships, which will get more intense and demanding as time passes.
Missing out on this critical developmental milestone in one's life has various effects, the most serious of which is that a man's emotional and physical growth will suffer. It will create a schism between his maturing and evolving body and his immature and infantile mind. A rift that, due to its severity and size, can never heal over time.