Prohibiting an adult from allowing certain minors to ride a horse, donkey, mule, or pony on a highway, a public horse-riding path, or the grounds of a certain facility unless the minor is wearing a properly secured helmet that meets or exceeds certain standards; exempting a minor who is receiving therapy services from a licensed medical provider and for whom the use of an alternative helmet is necessary, appropriate, and in compliance with certain guidelines for alternative helmet use; etc.