In order or importance.

1. Riding bikes is fun.
2. Faster or as fast as driving.
3. Nice time with my son and serves as a life model.
4. Exercise endorphins.
5. Riding bikes is fun.
6. Seeing/observing more than you would in a box
7. More fun than driving.
8. Seeing my co-workers face when they ask where I bike from (it is not even that far).
9. Cheaper than driving.
10. Less frustrating than driving.

Overall I do it since riding bikes is fun and it guarantees a ride twice a day.