I had my son take the beginning riders course also, and I am glad that I did. I feel that it is the best money I ever spent.
I know this sounds a bit strange, but I really never wanted my son to ride a motorcycle; but I intentionally introduced him to it when he was 15 so that I could influence his behavior and instill the respect needed to ride as safe as possible. I have had other riders ridicule me for what I am about to say....but I also made certain that he had a certain amount of fear of what could happen from circumstances both under his control and beyond his control.
I get some comfort knowing that he is not as STUPID as I was at his age, but unfortunately I will always worry about him riding when I am not with him.

JimL,
Poor kid he looks just like you but w/o the wrinkles on his face and black hair

On a serious note I think it is probably one of the best things you could have done for your son. It gives you a chance to spend time with him and go on trips together and you are giving him the reality that he is becoming a man and danger is in a man's heart. Men love adventure and what better way to experience it but together on a quite rode in the back woods on two wheels w/ your son (or in his case his "pops")
I remember dad taking me on his yamaha when I was younger and I was freaked out but it sure was fun. I will never forget the rides he took me on. Now as I have aged like wine

I bought dad a bike last year on my birthday so him and I could go riding around together.
Quality time spent with your dad is like no other. The older I get the more I long to go fishing with dad or fix his car so he doesn't have to. I have even kept an extra vehicle in the times that he can't get his jeep running he can drive my truck. I leave it at his place usually just so I know he has wheels.
I am now 32 and I realize my mortality and I losing my great uncle a couple months back makes me know that every day that God gives me the gift of life it is another day to cherish my folks and all they did for me. I was a pain in the butt growing up, but I got my fair share of whipn's but I know I deserved them. It has only gave me that much more respect for him.
Jim it looks like you and your son will have similar joys as the years go on.
May you enjoy the moment of his release in the near future you are doing a great job I am sure....

Stude31