Kind of a loaded question for many but yes they should
Because they have a death wish. Always wear a helmet. ALWAYS.
Lanscape contractors are not required to wear helmets. However, many do elect to do so when working on projects wear their head is exposed.
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.
Sikhs
All helmets must be DOT approved and have the DOT sticker on them, in the US, when helmets are required.
Yes, mc riders in the entire state of Ca. are required to wear DOT approved helmets although enforcement of the DOT requirement is virtually non-existent. Many riders including myself use what are commonly known as "novelty" helmets.
In Oklahoma, riders 17 and younger are required by law to wear helmets. If you are over 17, you are not required by law to wear a helmet
all motorcyclists wear helmets, squids don't wear helmets.
It depends what type of racing they are doing. In a Time trial there are specific Aero helmets that many prefer. In touring a long distance road riding a light comfort helmet is preferred it's very dependent and also has to do with preference.
It is not illegal to ride a two or three wheeled motor vehicle without a helmet but some form of eye protection is required. On a Bike it is illegal to ride a bicycle without a helmet if you are under 16.
Wearing helmets is the best thing to do when riding a motorcycle. One important reason why wearing a helmet is a must. The first reason is for protection. Helmets is a part of a motorcycle gear that riders should not neglect to wear.
all ages are required to wear a motorcycle helmet, unless you live in a state where there are no helmet requirement... but there are not too many states that don't have a helmet requirement