> a ridiculous concept

Says a guy who’s never had a friend or family member who’s been stalked.

If someone can get close enough to drop an AirTag on your person or in your car, they can harm you regardless.

A lot of people have the opportunity to interact with your (unattended) car or your belongings in situations where they couldn't harm you without taking a substantial risk. Imagine a person you interact with at a bar who drops an AirTag in your purse while you are briefly distracted.