I have several target people that I want to convince to commute by bike, especially my dad, who's 48 and lives only about 3 miles from work. He used to like riding with me when I was a kid, but hasn't done it in years. He basically never uses his car except to go to work and pick up a coffee on the way.
I think it would be good for him and easy and safe. How do you convince friends and family to take it up?