jon,
your uncle needs to do himself a favor and get a GOOD plane and a good instuctor for at least a few flights, even if he needs to travel an hour or more to do this. and also as stated the sims do help alot but dont teach you everything.
PLUS theres a BIG difference in PUCKER factor compairing a flight sim to the real thing. you WILL panic with the real thing and it will crash without at least having some buddy box time.
yes there are people who say they have soloed without any help but i will bet they had more trouble doing it than what they really tell us human nature make it sound better than it really was
well just my lost .02 worth good luck to your uncle whatever he does.
bassmanh