Would It really help the economy?

This blog post is for the sole purpose of arguing against Carolina Gomez blog titled "Legalized weed helps the economy"(http://wethepeopleofus.blogspot.com/2016/04/legalized-marijuana-helps-economy_1.html)  I have some arguments with some of the statements made in this blog, for starters she states "Marijuana is use as medicine to help treat and prevent illnesses" well that's not quite right is it? You see medicinal marijuana in no legitimate way cures illnesses nor treats them for that matter. Medicinal marijuana can be used by a patient in numerous circumstances but generally speaking the consumer typically resorts to medical marijuana as a pain reliever, of course there are other benefits such as a sleeping aid, muscle relaxant etc. but what is similar in all of these cases is the fact that there is no treatment to the illness itself, the herb is simply nothing more than a small distraction. Another problem with marijuana being legalized is that with this gateway drug being legal children would come to conclusion that this nationally accepted drug is a positive substance its just a matter of being the legal age to consume it. You may think this is not a big deal but in reality when we make marijuana an easily acquirable item it will inevitably be consumed by minors, yes of course there will be ID verification when purchasing but just like alcohol and tobacco there are many other ways to go about getting passed this "impossible age verification step". What we also have to worry about is we will be opening the doors of access to distribution, if America believes there won't be scumbags purchasing marijuana from dispensaries and reselling to minors or the general public then I worry for this country. She states that we will close down the drug cartels by legalizing weed in america, well sadly thats completely incorrect because the cartels do distribute marijuana to the US they are also the MAIN distributers of cocaine, multiple methamphetamine's, heroin etc. With marijuana being legal we would create our own miniature cartels ran by our fellow americans here in the US. Not to mention how many violent and even deadly crimes are related to marijuana each and every year, do we also believe that legalizing marijuana will stop the crimes and murders involved with marijuana, NO it will not, if anything it could potentially amplify the situation due to the fact that there will be mass production nationwide.