But then again, you don't want to develop bad habits that are incorrect ways of flying on the sim. If I were you, I'd wait until you & your son get a few flights in w/ a qualified AMA instructor, and when you have the CORRECT techniques down then you should start practicing on the simulator.

It will be more of a pain to get rid of those old simulator habits than it will be to just patiently wait.

Just my 2 cents.