kids and dirtbikes: yes or no?

[the Ferret]

my son at 5 with his first dirt bike



my son at 19 with his first street bike 83 GS 1100E Suzuki



My son at 40 with his MT 10 Yamaha (he is an excellent street bike rider, better than me I would say)



My son's two sons at 7 and 5 with their first dirt bikes (The older one got his first at 5 and handed it down to his little brother when he turned 5 and the older brother got a new one)



Someday they will be street bike riders too I'm guessing. I like the training they are getting now, and they both LOVE riding