At 8 he is old enough to race
I have 3 sons, aged 4, 8 and 11, and last year the two eldest ones participated in some local club races, witn no problems, I just had to run a lot as we didnt have too many marshals
The youngest at 4 drives a rustler truck, and is getting the hang of it already.
This year we are building a new track about 5 minutes from our house, so that they can get a lot more practise.
Recruiting new people is important, keep up the good work.