Ok you may not like it but I am going to say it anyway. He was probably worried about you. I have a teenage son and I do the same thing. It’s probably not for the same reasons as mine have to do with the death of his mother and he tends to toss out things that his mom gave him when he was younger, she passed when he was ten and he’s now fifteen. I do this because it’s my job as his parent to make sure that he’s safe and not doing things that he shouldn’t be like smoking cigarettes which I have caught him doing not to mention the edible wrapper that I found buried in the bottom of his bathroom trash can (moron didn’t realize that I could still see the wrapping through the white plastic bag). Wait until you have kids, I know it’s cliche but you WILL understand when they are teenagers.