I wear a helmet because I'm forced to. I wouldn't wear one if I could, but I feel that it's the least I can do for my mom. I know that she worries when I go to the barn and I promised her that I will always do everything I can do be as safe as possible. Then she started looking at safety vests, elbow and knee pads, bubble wrap..
The first 5 years I ALWAYS rode with a helmet. Like, I wouldn't even sit on the horse without one. Now that I have my own horse, not so much. If I'm putting him in a situation where he will probably be a turd, then I'll wear my helmet.