Bikes rule because they are efficient and fun. Incorporating even a little non-car transport in your daily life makes a difference in your health, outlook, and community connection. Doing it fairly often can result in much less flab and much more money. You could scare yourself out of riding a bike - it's too dangerous, you'd get too sweaty, or it's too cold outside - but that's the stuff (within reason) that makes you remember you are alive.