home growersThis may be a stupid set of questions. I heard in Canada we can grow 4 plants per person and possess up to 30 grams. Why don't people just grow their own? What is the average consumption of a pot user? How long does it take to produce 30 grams from seed to harvest? What is the cost of growing at home? Shouldn't this be a main focus on the demand? I mean, if I use pot on a regular basis I would definitely grow it myself and sell the rest. Has this been addressed in an article/study perhaps? Thanks in advance...