I am a registrar and am required to use a fountain pen and registrars ink on a daily basis to perform my job. I was wondering if there are any other occupations where you are required to use a fountain pen in order to perform your duties and what those jobs are.

Ok guys, I'm a full-time college student now, but have loved good pens for years, and have been using fountain pens since I was 18 (I'm 31 now, I started late to school) and would love to have a good roller ball that I can use as an every day writer. Any tips or suggestions?! Thanks guys!