I am. In fact I use message boards like this, and other means, as a way to prepare my kids to be better than the average person. No disrespect, if average is what you are shooting for.
But I am teaching my kids to be leaders, not followers. The type of person when they get older if something bad were to ever happen, they would take charge and help resolve the situation, not sit back and wait for orders.
Every little aspect of their life is a building block. When they fall and skin their knee, they dont look up and cry expecting mommy and daddy to come pick them up. they get up, brush them selves off, and assess the situation.
I am very proud of how loving and caring my 4 and 9 year old girls are. yet I know that if I fall off the face of this earth tomorrow, they already have strong foundation to grow on.
So again, little things like asking them to walk at a theme park do make a difference. We stop for breaks, and always go back to the room mid day.
All myself and a few others are saying is, your kids are capable of a lot more than you give them credit for. Being handicapped aside, push your kids, you will be surprised at what they can do if you only let them. Physically, and mentally.