I have a 2002 GS500 and have put on it almost 23,000 miles.
It's a great starter bike. I love that bike.
I got it after not riding for 20 years.
Best decision I ever made.
My 11 year old son has already claimed it as his first street bike.
The bike is what you make it. If you rev that engine it moves. Great in the twisties.
It's more fun than the V-Strom. My favorite bike hands down.
Getting that bike will be the best thing you can do for him.
The main thing is to learn to ride safely at that age.
Even if he gets bored and wants to sell it, it's only money.
There is a great community of people that will help him with any
questions. One of the guys even made a video on how to do the valves.
Good luck and tell your son he is doing the right thing.
Plenty of years left to ride those Busa type bikes after he learns on the GS.