1) People can travel between states, or even to other countries, during a lifetime.

2) MA legalized medical usage in 2013.

3) "Drug abuse" has nothing to do with the legality of the substance. It's whether or not the substance impairs the individual and that it was used for non-medicinal purposes.

> It is marijuana abuse because it’s illegal to use.

Maybe Marlene Mortler will agree with you, but that's a ridiculous statement.