That's who they cater to and that's who tends to buy their DVD's.
I think it would be possible to perform their stuff for lay people. You'd just have to cut out all the fancy Sybil cuts and leave in the transpo's and other effects they do.
When I do perform the bucks magic.I do it in a gambling sort of aspect.
If they ever ask me if I can cheat at cards I find a way to use their tricks as examples.