If the maker of the will did not name an alternate to the primary executor, or if the alternate is unable or declines to serve as executor, the court will appoint someone else, known as the estate administrator, in place of a deceased executor.
The issue is that medicinal, good quality, marijuana is very difficult to come by. Most street marijuana has been laced with other chemicals, like rat poison and other insecticides. These increase the feeling of intoxication. Obviously, if a chemical would kill another form of life, it would not be good for you.
Marijuana use has positive attributes, such as its medical value and use as a recreational drug with relatively mild side effects. Many people use marijuana because they have made an informed decision that it is good for them, especially Americans suffering from a variety of serious ailments.