They key is not smart enough to change user settings. You have to set up profiles in the head unit if you want to customize the entire ride for a different person. These settings will include Audio, climate, seat and mirrors, as well as which safety systems are set up. If you want to make it simpler, if the car has auto seat settings on the driver door... just set up #1 for yourself and #2 for your spouse.
Welcome to the club.
Welcome to the club.