Because your knowledge that certain drugs are bad is not stronger than the urge to conform. If your friends are doing it and you’re the only one not doing it, you’ll feel the urge to join them. Some people can resist that, a lot of people can’t.
And then when they try it, it feels really fuckin good, especially the first time. So good it’s life-changing, you might say.
I will!
The majority of people that have used meth or crack are fine.
Now, don’t get me wrong: meth is fantastically addictive. It’s the most physically addictive drug there is, as far as I’m aware. And the fantastically high addiction rate for first-time users of meth is: roughly 30%.
70% of people who try the most addictive drug in the world don’t get addicted, and go on to do other things like play tennis or do their taxes or switch to weed instead.