It's not just about trackability; it's an unwanted nuisance device to keep you in line with expectations of people who don't care about you. I'm not a tradie, why should I want to be on-call to have my day interrupted when I go out for a stroll in the park? There are ways to reach people that don't involve interrupting someone's day at random. Unfortunately our culture has normalised this kind of thing which is why everyone's on prozac nowadays.