If a career requires the individual to be registered, this is similar to the requirement to be

This is similar to the requirement to be employed, you need to be registered by the code of Federal Regulations.

The career requires registration because the professionals need to be controlled and regulated, of course, this may depend from state to state or country to country, but this is usually the reason.

it hurts at first because " the cherry is broken" which is a thin layer of skin that breaks so the first time girls have sex it hurts and it bleeds but after the first time it does hurt again because the skin that ia torn does not break again/ grow back.