Previous generations observed a clear association between marijuana use, mental illness, and addiction.  With opiate overdoses are ever increasing what justifies encouraging the use of this gateway drug?  Is it all about tax revenue?  If cannabis actually triples the rate of Schizophrenia and psychotic illness the costs for medical treatment will be many times the tax revenue generated by cannabis sales!  

CANNABIS, TOBACCO,  AND OTHER DRUGS

Cannabis use can increase the likelihood of using other substances including tobacco.