For example, if a trans person goes to a hospital in our area and their health card, from birth, indicates “Michael Smith”, but their preferred name, which is not a nickname, is “Michelle”, many health care providers will not use the preferred name of “Michelle”, even though the person presents as female, and they will say “Michael”.
The patient could be in a waiting room and they're called “Michael Smith” and they're presenting as female and their preferred name is “Michelle”. That's triggering many in the trans community to walk out of that environment, whether it's in a private office of a doctor or a clinic or a hospital waiting room or an emergency room.