To protect their heads in the event of a crash.
Yes
all motorcyclists wear helmets, squids don't wear helmets.
They wear crash helmets and full body harnesses. They also use high tech equipment to measure the ice
Men usually wear shirts and pants. Women usually wear Salwar and Kamez.
Sikh's don't have to because it is part of their religion. Only people in the Sikh religion can get away with it.
1973
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.