I am 35 years a T1. I should be complication free, except I was a very stupid teenager, and ignored my diabetes for about 5 years. I have had laser, but mended my ways, and since then my diabetes and health have got better and better. I now have kids, a full time job, went to Uni, got a PhD...so diabetes shouldn't stop your son doing all teh wonderful things he want to do with his life. I know, had I been on a pump during my teenage years, I would not have been able to ignore my diabetes, and would not have needed the laser.
I guess, like the previous post, it is down to control...self control. I got diabetes when I was 4...it is not always easy, but, and I know this is trus of me, and I think of many other T1s who were diagnosed early in life, it makes you a very determined type of person, with a can do attitude.