my son is 12 and trains 5-6 days a week, sometimes more than 1 class a day, and works out with body weight 3-4 times a week.
he loves training all the time, he even trains when we are out of town and he is always drilling on me at home.
he wants to be a pro fighter when he grows up and i support him 110%, his training takes alot of my time and money but i am happy to do it.