I think if his grades are dropping, he can't smoke. Smoking pot greatly impairs your learning abilities. School is important and if he can't smoke and make A's, then Dad's got to nip it in the bud.

Hey, thanks for asking our opinion. You're a cool dad and he should respect that you made the effort to ask a bunch of potheads. Because the news and the government and the laws about weed are assbackwards and convoluted. Just like everything else in government.