At any age, children pay closer attention to what you do than what you say. Even fiercely independent teens are heavily influenced by their parents, so if you drink excessively or use drugs, don’t be surprised if your teen follows suit. Having a parent who uses drugs is a strong predictor of adolescent substance abuse.
It should go without saying but never provide alcohol or other drugs to your teen or their friends. You may think they’ll be safest partying in your home, but the message they receive is that drug use is acceptable, which puts them in much greater dangerin the bigger scheme. Follow your own rules and spend quality time with your child so that they are regularly exposed to your positive model.