"All of you are completely wrong. Even though I wear a helmet always because I bike on roads with cars here in Texas where cycling infrastructure is non existent and cars hate you. I don't own a car even though I'm an Automotive Technician lol. I also live in the Houston suburbs, one of the most spead out places on Earth it seems lol. That being said the only reason I wear a helmet is because of cars. When I travel to Europe with my bike, the helmet stays at home. That's because if you are traveling at leisurely speeds, which I do while bike packing,  you are more likely to sustain a neck injury with a helmet than a head injury without. Helmets are only necessary because of all you dumb cars. That's why less the 1% of Dutch cyclists wear helmets. All of you are clueless. Obviously descending wear a helmet, MTB probably wear a helmet lol, congested US city streets probably a helmet, but quit judging others for not wearing one or their choice for doing so because all your baselines for cycling saftey are based on complete misconceptions to begin with."