Depending on how many students you have and how many graders, it may be a choice of that or arbitrary "if I can't read your handwriting, you get a 0" requiremen

Depending on how many students you have and how many graders, it may be a choice of that or arbitrary "if I can't read your handwriting, you get a 0" requirements. As a separate note, some people think that classes should teach more than just the narrow subject material, and a knowledge of LaTeX is somewhat useful for someone who plans to actually publish CS research.