I find it strange that we still don’t have any fine grained access control in HA.
There really should be a safe way to give access to only parts of the home to kids, guests, wives ( 
) and so on.
This would also be good for running multiple locations in the same HA instance where a separate HA instance is not needed. (For example I have some heaters in a cabin connected via VPN to my HA…)
For now , I believe the only safe way to do this is to make several HA instances and then connect them through “remote HA”.