I had a relatively large increase in car driving ability once I started motorcyle riding. I think everybody should take the motorcycle course (32 hours or something like that) even if they never ride again. It's been very helpful to me. It also makes a rider far more aware of how little attention is given to safety protocol by a lot of car drivers. I had a headset for a year where I could talk on the phone while riding. Not the best idea I ever had.