Other way around down here in Texas. Most of the helmetless crowd around here are older people (middle-aged-plus) on Harleys and other cruisers.
With modern sportbikes, no helmet can be a huge problem for the rider as the speed one naturally wishes to go on the things, combined with the angle of the little windshield, means that no helmet = the wind tries to take your face off. Most sportbike riders that use the highway generally wear helmets and at least partial gear these days.
The speed may be the problem. If you're traveling 50-80 mph and you lay that bike down, that helmet will do nothing more than keep your brain alive till they transport the body to the hospital and pronounce you dead of massive internal injuries.
By the way, folks shouldn't drink, or smoke, eat fatty foods, or charred meats such as bbq or carry firearms, eat eggs more than twice a week, ride in the back of a pickup truck on a country road, chew tobacco, drive over the speed limit, take a tablet from someone elses Rx, watch the butter/eat margarine...no no not margarine, can't take Midol or Tylenol to school....and on and on and on.
Personal liberty means get busy living your own life and stay the hell outta mine.
The government doesn't need to legislate every aspect of life as if they are babysitting the adult population.
We are already incredibly over-lawed, the government passed yet another 80,0000 laws, rules and regulations last year.
Smaller government = personal liberty.