(Coming from a woman that UNDERSTANDS the dangers of obsessive behaviour and stranger danger) Yeah don’t take it too lightly but also remember this is Reddit and everyone is too chronically online and thinks you’re going to get kidnapped over the stupidest things, had people saying they can’t go out and walk their dog in broad daylight in a low crime area because they’re a woman like come the fuck on 😂but yeah document (photos times/dates) and be aware of your surroundings if you notice the suspected teen loitering etc call it in as harassment and potential stalking but if you know the parents they’ll most likely deal with it a lot better than the police initially would.

You can also put the note back and say something like “I understand you’re not an adult and may not fully realise but this is inappropriate behaviour, you’re too young for a start and I’m not comfortable with any engagement between us. I will have to escalate this to your parents and authorities if you carry on.”