Seems to me that you can't think of any reason to ride a bike in Hawaii, then please, don't ride a bike! It's that simple. But do you have to be so dismissive of something others enjoy and benefit from? I mean, I hate liver, but I am OK with other people eating it.  Riding a bicycle for me is a joy, plus it gives me exercise, gets me outdoors and costs much, much less than driving to work. It improves the quality of my life in the islands tremendously. And there are proper ways to ride bikes in traffic that greatly reduce the potential for accidents (that of course includes following the rules of the road…). Just watching a YouTube video on safe street riding strategies would be really help reduce accidents and increase enjoyment. And I tried the Biki bikes last weekend - they are pretty fun! Not really meant for long rides, but fun for cruising around. I suggest people try them out before dissing them out of hand.