Automate Switch Based On Multiple Presence

Configuration
1

I followed the new person steps.
I did the searching.
I tired many iterations.
I’m stuck.
I’m trying to setup an automation that turns off a switch when all 4 people leave (Life360) the zone (my house) and turns the same switch back on if any one person returns to the zone (my house). The switch controls the hot water heater. Trying to save a few $$$$.
Any guidance is GREATLY appreciated.(edited)

2

The typical way is to use a group. Either create a group with the device_tracker entities, or just use the automatically created one: group.all_devices. The group will be home whenever anyone is home, and will be not_home when nobody is home. Then:

- trigger:
    platform: state
    entity_id: group.all_devices
    from: home
  action:
    service: switch.turn_off
    entity_id: switch.xxx
- trigger:
    platform: state
    entity_id: group.all_devices
    to: home
  action:
    service: switch.turn_on
    entity_id: switch.xxx
3

Giving that a shot now. Thank you for the help!