i fought some poeple that started boxing like at 6 or 7 years old. and im not gonna sit here and lie i didnt win but i didnt lose either. so we were both kinda going at it. and i started when i was 19. i think its never to late to start boxing. the way i look at it is if you have it, you have it no matter how young or old you are. you cant teach a singer to sing there born with the vioce. so you might be born with the talent to be a great boxer. you never know. i dont know if this really happend in real life but watch the movie million dollar baby she started like at her 30's and she just had that god givin talent. so i say go for it if your good then turn pro if your not good then just use boxing as a hobby to stay in shape and do something you love. i hope this helped.