My parents brought me up in a way that avoided all harmful things. I assume most people are brought up with the notion that you make mistakes then you learn from them, my parents just told me not to do those things. Never smoked, drank, done any type of drugs etc, and don't regret it. Don't like how substances change you as a person, make you wild or anxious or something else that's fabricated. People have fulfilling social lives without alcohol, partying etc, so why take the risks involved?