Depends where in Houston you are but this time of year you will see folks who normally ride in full gear wearing a helmet and not wearing an armored jacket. One of them maybe me since if I'm just tootling around inside the loop and not going on the freeway when its in the upper 90s I wear my Nolan Italia copter helmet and don't wear a jacket though if I'm going to be on the interstate I will still put on the N43 and jacket. Its just that given the temps intown with lots of stops at lights I can't take the heat. Since I live inside the loop I typically see riders with helmets and not much other gear until the weather cools down. Only a very small percentage of those riding scoots don't have a helmet on, probably less than I see Harley riders without helmets like the guy riding with sunglasses, jeans and flip flops on his Harley - he had a lovely tan but wouldn't be my idea of riding gear.