There’s an app call life360. I never used it, but I’m told it’s the best location tracking ever. Unfortunately it doesn’t support apple watch. There’s another app called findmykids:location tracker. My co-worker has it installed in her daughter’s Apple Watch and it seems to be more reliable than ‘find my’ app.
I wear my AW during a wedding. The bride and groom does not want anyone taking out phones because it can cause distractions. My Apple Watch is cellular, so it’s not a problem for me