As a parent I usually know the general where about of my kid like 99% of the time (or at least where to start looking), and if I don't know exactly where he is

As a parent I usually know the general where about of my kid like 99% of the time (or at least where to start looking), and if I don't know exactly where he is I know how to contact whoever he is with to find out. Of course this will change as he gets into middle/highschool. I mean we grew up without phones and our parents+ grew up without phones. I think it will be fine. He knows both of our phone numbers so if he ever needed something he would probably just ask a stranger to borrow their phone to call his parents or something. I might be the edge case here, but I really like that he has to think about what he is going to do, or where he is going to go with his friends; that he might have to somehow contact me so he has to plan ahead. This is what we did when we were kids, we would have to let our parents know ahead of time where they could find us. It is sort of a responsibility that has kind of faded away with everyone having phones.