Apple Watch SE as presence sensor 2021

Anyone using the new apple watch SE 2021 (has cellular and GPS activated on family sharing) as a presence with ST hub?

There is an old thread from 2017 which seems buried pretty deep on this forum.

I have 2 family members with this watch on stand alone plans and would be great IF it could be used as presence for each so they don’t take their phones to school anymore.

Hope someone has it working.

Many thanks in advance.