Even after teletypes were replaced by computer terminals with higher baud rates, many operating systems still supported automatic sending of these fill characters, for compatibility with cheaper terminals that required multiple character times to scroll the display.
This makes sense to provide a nurse with a job which will pay the bills and cover housing wherever they live.
Soothing caretaker Healthcare settings can make people uncomfortable due to their sterile environment and the scary health circumstances patients may find themselves in during their stay.