Actually, yeah they really can. Many people make money off plants, you buy apples, corn, oranges and other shit that comes off plants/trees, and those are TONS easier to grow then marijuana.
In fact they or the gov could make an absolute killing if weed be legal and they sold it.
it shouldnt be legal to people unless they need it for real problems such as cancer and other diseases, not just so people can get stoned. Weed does effect you when your stoned, longterm side effects who knows, but I'm talking about while your using it.people tend to be slower and forget things a lot, but thats minor stuff. When you truly fit the definition of being stoned, you absolutely cannot drive a car or do anything like that. That being said its a moderation thing, and alocohol is far worse but thats just how it is and just because alcohol is worse then weed doesnt mean weed should be legal, and even more importantly, just because weed doesn't effect you that negatively health wise doesnt mean it should be legal either.
Dont get me wrong, i like weed, I smoke it every now and then, but Im man enough to admit that it doesnt belong legal for everyone. Chicks are bad enough drivers, last thing we need is tons more stoned chicks driving to taco bell to get their munch on. dont think any positive would come from weed being legal unless its to the people that really need it, but a lot of states have already realized that and have legalized it for those purposes and others will start doing the same thing.
If everyone were responsible and could handle it maturely then it wouldnt be a problem, but most people cant.