Since marijuana is a drug, its usage can cause people to experience a high that alters/impairs their perception and judgement. There have been several incidences where someone under the influence of cannabis has caused a traffic accident. In fact, study shows that marijuana is one of the most prevalent drugs found in fatally injured and impaired drivers.
The legalization of recreational marijuana would promote consumer safety and create jobs. Marijuana product testing is a standard requirement for legalized marijuana markets, this means that consumers are better informed about the cannabis they use. Testing the marijuana for mold, bacteria, or any other problems/impurities should be required to ensure quality and safety. Also, legalizing and regulating cannabis would create jobs and economic opportunities.
Legalizing marijuana would provide wider access for medicinal use. Individuals both inside and outside the medical field argue that marijuana is effective in treating a wide range of health conditions, such as epilepsy, post traumatic stress disorder, Crohn's disease, and multiple sclerosis. Marijuana is also believed to help with certain mental illnesses (depression, anxiety, etc). It is used as a pain reliever for radiation therapy/chemotherapy patients as well. The decriminalization of marijuana usage would allow more people to use the drug for its believed health benefits.