[Know your rights]

Perhaps the ill would benefit from a clean regulated and legal growing environment.

You would regulate God's gift?

Yes, for noncontamination, as is rightly done for many of God's gifts. Respecting God's gifts doesn't imply permitting their fraudulent sale (which is what the sale of contaminated goods is).

[robertpaulsen]

So a 10-year-old California child would legally be allowed to smoke marijuana for medical purposes, such medical purpose as defined by Proposition 215?

As I said, you wouldn't deny "an herb gifted by God", would you? You wouldn't regulate God's gift away from this needy child of God, would you?