To prevent head injuries. --------------------
The same reason other places did--- money.
A bicycle helmet is a piece of protective headgear intended to be worn while riding a bicycle.
A moped helmet is sturdier, heavier and less ventilated. It is expected to provide decent protection at accidents at higher speeds than a bicycle helmet. A bicycle helmet is lighter, better ventilated and only has to provide decent protection at lower speeds than a moped helmet.
First, I assume the question is really..."Do you salute the American flag while you are wearing a bicycle helmet?" If the helmet is part of a uniform, you salute. If it's not, you take the helmet off and hold it over your heart. Second, if the question is..."Do you salute a bicycle helmet with an American flag on it?" then the answer is no.
The cast of The Invisible Bicycle Helmet - 2012 includes: Terese Alstin as herself
If you have a helmet yes
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All Bicycle riders under 18 are required to wear a helmet
It is recommended that you wear a helmet, but it is not a legal requirement
A Bicycle helmet
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Wearing a helmet protects the head, and many of your body's systems are controlled from there.
Twenty-one states and the District of Columbia have bicycle helmet laws that require some young bicyclists to wear a helmet. No states currently have laws requiring anyone over 17 to wear a helmet. However local law may require helmet use for some or all bicyclists. These means, for example, whilst Washington have no laws requiring helmet use Seattle city law does require it. This means you need to look specifically at your city laws for the provisions put forward in your area. You may be surprised at what you find; city provisions can often be much stricter than state laws.