When you are a parent of a teenager, not everyone is on the same page, wavelength. You want to know where your child is going. When my kids were young, I would ask the parent: Do you have a gun in your house? Do you have prescription drugs? Where are they going to be playing? Is there a pool? Because you want to keep them safe.
Now, because you have a teenager, I have a teenager, your questions are different: Who is going to be home? Do you allow them to have alcohol? Do you lock up your alcohol? Are there going to be girls there? The dynamics becomes quite different.
For example, my son was hanging out at a house that was known as the party house. Boys were, supposedly, drinking and doing all sorts of fun stuff. Girls were over there, a little bit of reckless behavior. My husband and I decided we don't want our son hanging out there anymore. We talked to him about it and said, "You have a choice. I don't want you to go there anymore. I don't want to be the parent who's coming to that house, smelling your clothes, asking you all sorts of questions, just driving by to see where you are. I want to be the parent that can trust you. You have the choice." He did make the choice not to go back and hang out at that house anymore because he knew that he didn't want to live in an environment where there was no trust.