I took a 25-year-old to a dispo on the Seneca Reservation last year, after she had smoked up all my stash. She asked about prices. They gave a price for 1/4 oz and for 1/2 oz. She asked "which one is bigger?" The Indian behind the counter looked over to me with a poker face. I stayed out of it. A lot of people are traumatized about math from an early age.