I guess if somebody were to grow their own marijuana and use it in their house for personal consumption, then they would have control of the product from the beginning to the end. That would probably be better than reaching out to somebody on the street and getting a product that they don't know. Yes, I would agree that in a perfect-world scenario that would be good.
I also would recommend that you be careful about how your home-grow is wired, how it's being ventilated, and who has access to it. Is somebody going to come in and decide they want your four plants instead of leaving them with you?
There are a lot of layers there. On the perfect nirvana where somebody is smoking their own marijuana in the privacy of their own home, there are a lot of layers before you get to that point. I think that's what we're trying to point out here.