Replying to Anti drug argument

i know that most everyone gets high or at least gets drunk, or if you dont, you probably dont give a fuck since you ski and see that shit all the time, but for all you sober cats out there that arent down, whats the issue? im just trying to understand your argument, why does it matter to you wether other people drink or do drugs as long as it doesnt affect you?

this probably isnt the place to do this cause almost everyone gets down here, but if there are any of you that dont, enlighten me to your side of the story, im not trying to get down on you at all, just curious