I'm old school and still have clips/straps on all my bikes. Part of it is economic: switching them all over would cost a fortune (three sets on the triplet, two on the tandem, and four single bikes between my wife and I). But more than that, I don't have a big reason to. I've tried clipless. Indeed, I still have them in my parts box. I keep my straps loose enough to easily pull my foot out, but still feel that I'm plenty attached to the pedal. I've never, ever, fallen over because of being unable to get out of my pedal clips. These, combined with Shimano SPD shoes (without the cleats) give me a good rider interface with the pedal. I also really like being able to ride in any sort of shoe, especially when touring.

I completely see the benefits of using clipless pedals. They just don't work for my needs. What really bugs me, though, are the people that feel that I must not know anything about bicycling just because I choose not to use clipless. I invariably get the "it's so much better" lecture, even from complete strangers. Happened just this weekend. Use what works for you, and don't judge others.