Ride a bike...
1. Because our children know what's best for their future.
Greenhouse gases emitted by cars causes climate change, which will affect our children's and their children's future.
2. Because car commuting costs an arm and a leg.
The typical American family spends almost $8000 a year to own and operate a car. A decent bike can be had for a few hundred dollars, last for years, and cost almost nothing to operate.
Pollution from cars causes lung cancer, respiratory problems, smog, and acid rain.
http://youtu.be/QDmt_t6umoY
Photo: Paul Newman via Rides A Bike