I tried to get both my younger boys interested in running, but it was a total bust. I think I was just a little too eager. And it probably didn't help that running was something I did myself, so they probably decided they didn't want to do an activity that would put them in such direct competition with dear old dad who had a 20 year head start. Fast forward a decade or so, and middle son suddenly wants to learn how to play tennis. We had our first session last weekend, and it was great. Sometimes these things are just a matter of timing.