Helmets do save lives. I think people should be able to choose for themselves but, one cannot dispute the safety factor. I’ve been a horse person most of my life and helmets are mandatory in any riding programs these days. I, personally, do not like wearing them but, I know someone whose horse stumbled on icey ground and she fell on her head and is now brain damaged. Bikes, motorcycles, horses, yep, a good idea even if they are hot and uncomfortable.