My 17 year old smokes weed every day. Have tried until I am blue in the face to get him to stop. He won't. All his Friends seem the same. Now they are passing their tests and going out in cars. My son hasn't yet but will be being driven by those who have. They are all really silly, immature lads. I am absolutely terrified. No idea even what I am asking. My son refuses to see anything bad about weed in any shape or form, so can imagine him happily climbing into a car with a stoned driver.