OOPS!
I was going to post a poll earlier but then changed my mind. I guess I didn't log out correctly since part of it is still here.
It was going to be multiple choice:
#1) Inform him the minimum age is 16 and when he turns 16 he is welcome to race with your organization.
#2) Put it to a vote of the membership. If they approve changing the minimum driving age to 15 you allow him to race.
#3) Leave the minimum driving age as 16, but allow him to race since he already competed with your organization as a 14 year old.