What exactly leads people to start taking drugs? Share your thoughts?

Problems, troubles, struggle and various types of stess, everyone has to face it. The ones filthy rich today, even they had to face all types of challenges once to get to where they are today. Even if you figure out a short-cut to success, it won't be a cakewalk.

Then, why some folks become completely hopeless and find solace in drugs? I don't like drug-addicts at all.

My friend was a drug-addict. Despite the continuous efforts of his family and some friends, to keep him away from drugs, he would figure out the way to buy some form intoxication and be high. He escaped from rehab thrice. He was under the observation of good Doctors and Therapists.

I parted ways with him because I had no other option left. I asked him to choose either drugs or my friendship. He chose drugs. I never saw him again.