I agree with the comment about apples and oranges, but more specifically when dealing with kids you have to consider their attention span. If you show your son assembly language for his school science project instead of C#, is he going to be turned off because he couldnt do that little pop-up box trick he wanted to in 2 days?
If he's really interested in "real programming", he'll learn it. I wouldn't worry about some Visual Studio tool limiting his mental abilities, after all it takes a fairly bright kid to see the simplest project through by themself.