You can grow the stuff in your bedroom. So much for taxing and regulating.
A lot of products that people buy in stores are things they could grow (or make) themselves. Convenience has market value.
I agree, but that “convenience” might mean buying it, tax-free, from the guy (kid) next door. And the stuff you buy locally might be more potent than any government-blessed stuff at the store. Think about the old limitations on beer across the US.