Noticed; and just relating to thermostats; three new builds; not telling the HVAC contractor where I wanted the thermostat they were all installed at switch level. Never really though paid attention. (old was all buttons, then a mixture of LCD and buttons)
In wall touchscreens (well paying attention) are at eye level with no buttons. Alarm keypads at eye level. Old intercoms at switch level. My Russound keypads which are a combo of LCD and buttons are at switch level probably cuz they are the same size as the legacy switchs / electrical switch boxes.
The problem is the WAF factor. I'm an engineer, my wife is a nurse who couldn't care less about how 'cool' it is, as long as it works.
This is ideal in that you can engineer custom automation just for your family (and have high WAF).
Ask your wife what automation she likes in her work environment that would "work" or be feasible for her in the home environment.
You could introduce some AI, VR and TTS such that she could just request status of the residents in the house (well your family); all kinds of stuff you can do these days with automation. (note this is going into more of a software realm of automation rather than a firmware realm of automation). This is though beyond just an intercom thing.
Thinking back to when my kids were kids; they had very selective hearing; wouldn't matter much where my voice was coming from unless there was eye contact. I did have text to speech in the house and did tell my children "
she" was watching over them and to listen to her voice. They did and gave the voice a name ("Diamond") and wondered how the voice could be in almost every room in the house at the same time. It was sort of a PITA to set up.
Geez with the Microsoft Kinect; you don't even have to talk.