HELP: Location not updating on FindMy

I have iPhone 15 and I want to switch my location on FindMy to my other phone (iPhone SE Gen 1). Both the phones are signed in on the same apple ID. However, after I switch my location to SE, it is not updating the live location. When my friends check my location it says “9 minutes ago” or whatever and it keeps increasing.

Suggest a fix for this issue. I go out often and I don’t want my parents check my location and get caught because the location is not updating live.