Re: Youth and breakfalls.
Your son is plenty old enough to learn breakfalls. We teach all the children in our kids program (ages 5-17) to breakfall. Actually, most of them love to breakfall. The impact isn't nearly as bad as you might think it to be. They do, however, need to be taught properly and at the student's own pace. Most kids almost do them naturally, but a few find them intimidating. This isn't weight training or elite gymnastics where you might risk stunting his growth.