what everyone else says: you don't Have to do anything you don't want to do!
but............if you're interested in clipless - there is a double-sided pedal (I didn't see anyone mention that one?) which is clips on one side and platform on the other. That way if you're doing just some straight, flat-out riding you can be clipped in but if you're tackling some rough road or stopping a lot, you can just rest your cleats on the platform side. I have these pedals on my MTB and my old commuter bike and I've recommended them to several ppl new to clips.
I'm sorry - I can't get the site to load to give you a link, but I think it was the Shimano PD-M50s.
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"