Prescription medications cause just as many deaths as illegal drugs so you better stay way from granny.

Yes sure, I have seem my granny involved in gunshot and I risk being send to prison by being near granny when she have her prescription.

10/10 argument.

Mugging and killing are problems unto themselves.  Stealing and killing are wrong.  Doing drugs and gambling are not.  

I had pretty bad drug problems when I was in college, causing problems that have persisted until today. I saw some fucked up things. Talking about opiates in particular, which was what I got involved in, I can say that it becomes an issue of staying "well". Your body becomes dependent on the drug to function, and when the drug wears off, you feel like you have the flu and get depressed and anxious. It really sucks, and that's what drives people to stealing and ripping people off.

One of the craziest things that happened during this time for me was a heroin deal that went south. I was in the car with a "friend" of mine and someone that needed H called him saying that he scrounged up some cash. My "friend" did not have any H, but wanted to get the money off of this guy, so he lied and said he did have some. We stopped at a convenient store and he punctured a bag of cat litter and took out a couple of the rocks, and we bagged that up and made it look like heroin.

Now, it's not particularly hard to tell the difference between cat litter and heroin, but oftentimes the heroin is cut with something that makes it less pure, and this guy that bought the kat litter was desperate, and figured he'd go ahead and try shooting it up anyways, knowing that it probably wasn't heroin, but there was a small chance it was. A few moments after the injection it became clear that there was no heroin in the shot, and my "friend" played it off saying that he must have been ripped off himself because he paid good money for it.

The guy that took the shot started vomiting and we had to take him to the hospital where he spent several days.

Really fucked up story, I know. Almost killing someone just to get like 60 bucks to go and buy a bag.

My argument is that just because a drug is legal doesn't mean shit and that legal drugs can be just as bad or worse than illegal drugs.

Your argument is ridiculous because my point is to avoid people that can put you in trouble by being with them. Being around people that do crack have a high risk of you going to jail together when police bust the group while you helping your grandma that use a lot of legal drugs won't give you these problems.

Bad analogy is bad analogy.

What if your grandma was high on Oxycontin and driving around which results in her plowing into a bunch of people?

I wouldn't let my grandma drive while high on oxycontin. I would drive for her.

If she was drunk and kill someone I would be accessory on the murder. Under brazilian traffic law if you are a licensed driver and is a passenger on a car a drunk person is driving you are liable.

The strong shall live and the weak shall die. That's the natural order of things.

Well seems your laws are more strict that USA.  Anyways, it was a bad analogy but the facts remain that doctors are as much drug pushers as the local drug dealer.  Now that they are finally cracking down in USA the people that were addicted to opioid prescription drugs are turning to heroin which they started mixing with fentanyl.  Drug companies and some doctors are the main cause of the entire opioid epidemic that has been plaguing the USA the past decade or so.  They used to hand them out like candy and now they only realize how much destruction they have caused.