Daddy why don't you enter the Bike Race?

My 6 year old asks me while watching the Tour "daddy why dont you join the bike race?" I think its so cute. But it makes me feel badly that i am not setting a good example for my kids. I hate to feel like me riding is important but it is. It is who i am i feel so much better about myself if i am active and i am so inactive it is driving me crazy. It doesnt make any sense when i could easily just change my ways but i have about every excuse in the book to use. I just have to get on it and change some things around.