My opinion on drugs

Hmm let's just start with that I am not against anyone who does drugs or have tried drugs, or have gotten drunk, or smokes whatever it might be. My beliefs are different though, mostly because I think a lot differently then others. I have talked to 3 Mormons girls in my acting class not to long ago about what they believe in and stuff, and from what I heard, they are very much into being the best people they can possibly be because they have higher expectations of themselves, and my conclusion on what I think they would say about doing drugs and this goes for any religious person, doing drugs is a sin because the actions that people most likely take while being under the influence result in sinning and going against God and His purpose. Now, I do believe in that some, but my own opinion on the matter, is that it simply isn't natural. I had this argument with my boyfriend because he thinks that doing weed and drinking alcohol is okay. He tells me stories of his parents letting him drink with them and smoke with them sometimes, they care for him a lot and they are great parents, they just think those particular things are ok to do. Other people have different family structures, but for me that is definitely not being adults. Straight up, it's not what God made us to do. From birth, a person is meant to only consume food and water, therefore, anything that someone consumes in their bodies is simply not natural. It's just what makes sense to me.