When marijuana is enjoyed responsibly, subjecting users to harsh criminal and civil penalties provides no public benefit and causes terrible injustices. For reasons of public safety, public health, economics and justice, the prohibition laws should be repealed to the extent that they criminalize responsible marijuana use.
Cannabis consumption is for adults only.
It is irresponsible to provide cannabis to children. Many things and activities are suitable for young people, but others absolutely are not. Children do not drive cars, enter into contracts, or marry, and they must not use drugs. As it is unrealistic to demand lifetime abstinence from cars, contracts and marriage, however, it is unrealistic to expect lifetime abstinence from all intoxicants, including alcohol. Rather, our expectation and hope for young people is that they grow up to be responsible adults.