parents are really just powerless figureheads, like the queen of england, she looks like she runs things but she just looks good an represents

i think at 15 you should (should is the key word, maybe not) be able to be responsible enough to make decisions on your own, i would just tell them and if your parents dont like you smoking weed tell them you dont give a fuck what they say, refuse drugs tests and stuff, they cant legally make you unless your on probation or something