I was just curious how many people still wear their helmet even in a state where its not required.
 
I live in Arizona and we don't require helmets.  I normally wear one anyway and I see about 1/4 of the riders hear wearing one.  Seams like recently more people are wearing helmets, especially the lady riders.
 
I  live in Pa and helmets aren't required but I always wear  mine. It seams to me that mosts of the riders don't wear helmets. thats both men and women