Most people say that 13 years is a good age for kids to start dating although many differ on this. People are different and their level of maturity is different as well and this determines if the age is right or not. A range for the best age to start dating is given to be between 13-17 years and your parent can decide the best for the kid.
I started dating at 13. I think it depends on the maturity of the child and responsibility of both parents. You need to know to respect your body so you don't end up doing something you will regret because the boyfriend talks you into it, or your friends are doing it.