Is there even a need for a helmet in most motor vehicles? Many safety features are already incorporated into the vehicle and the vehicle itself must meet safety

Is there even a need for a helmet in most motor vehicles? Many safety features are already incorporated into the vehicle and the vehicle itself must meet safety standards. Contrast that to bicycles, which are often sold without legally mandated safety features and it is very much possible to purchase a new bicycle which should be considered criminally unsafe.[1] The only reason why we are asking these questions is because things that are legally required for automakers is left, at best, as a responsibility to the consumer when it comes to bicycles. [1] To be specific, any department store should be regarded as a death trap prior to a knowledgeable person verifying that it has been assembled properly. Even then one has to be careful since the components are typically intended for very light use.