Because in the states where they exist it is the law to do so.
Primarily it is to save the life of a fallen biker who is FAR more likely to die from head trauma than from any other injury.
all motorcyclists wear helmets, squids don't wear helmets.
Sikhs do not have to wear crash helmets as part of there religion.
Not all builders wear yellow helmets, but builders generally wear brightly colored helmets...brightly colored to maximize their visibility at the work site, and helmets to protect their heads from injury.
Mostly vert pro skaters wear the helmets.
Players wear helmets when playing American soccer.
Different helmets
spacemen wear helmets because , there is no oxygen in space. They have to carry an oxygen cylinder on their backs.
Yes bike helmets are necessary for a short trip, for your safety. For more information go to www.rei.com/category/4500003_Bike+Helmets, www.dickssportinggoods.com Home How To
Yes, It is important to wear a helmets in your rides. Helmets can protects you from any accident.
Skateboarders don't usually wear helmets unless skating a vert ramp
Not all gas masks are compatible with helmets, so some soldiers forgo helmets to wear their masks.
NFL players were first required to wear helmets in 1943. At the time, they were made of leather. They then went to being made of plastic and now are made of polycarbonate.