As an exchange student in Bayern, I've seen other students use fountain pens, though more often Kugelschreiber (ballpoint) or Filzstifte (felt tip). I'm not aware of any such requirement for fountain pens.
Are you in High School or Uni? Grundschulekinder use fountain pens (specific Pelikan or Lamy models with stiff nibs for kids) from Klasse 1. My son's homework was rejected unless he used one. By high school things had become more relaxed...and the handwriting less legible.
gumby|8 years ago