Practice make permanent

A few years ago, my mom gave my eldest son a pair of training roller skates. My son is a fan of instant gratification. When he put the skates on and immediately lost his footing, he grew frustrated and lost interest in learning the new skill. The skates were placed on a shelf in our garage.

Skating: So easy???

After some time passed. I would see the skates and ask him if he would be willing to try it again. To give my son credit, he would go along with my suggestion, but then wouldfall down and...