My wife puts up with my HA habit, but even I knew that cameras were something to approach delicately. What we sort of fell on - and she is ok with - the following:
Outdoor cameras (doorbells and such) - fine. Adds to security.
Garage camera to check to see if we accidentally left the garage door open while we are away, she was ok with that.
Interior cameras in spaces that generally are not occupied (we have a 5BR house) were ok.
That got us through for a while. But then life circumstances changed and it evolved into us being away a couple weeks at a time on a regular basis. After a couple circumstances where she was worried maybe our house was getting broken into, we agreed to an interior camera in a main living space - but it had to be something that could be visibly seen as to whether it is on or off, and set to automatically go into “off” when either of us are home. We picked a camera from EZViz for that. When you switch on privacy mode the camera lens rotates back into its own body and it’s obvious from just looking at it. HomeAssistant controls automatically putting it to and out of privacy mode.
This made me think — is it maybe a security thing he is going after? Like a cheap, makeshift alarm? If so, just steer the conversation into a security panel instead.
Been doing this for several years in my house.
My home office is in the basement, gets cold in the winter. Immediately when motion is detected in the master bedroom in the morning (and it’s a weekday and the outdoor temperature is below a certain amount) the space heater will automatically kick on for 1 hour to warm the room up.
I also have a Zigbee switch setup right at my desk that I can hit to pop it on again for a 1 hour interval during the day if I want.