i just finished 5 years of college. and let me tell you, handwriting is still a necessary tool of civilization. i wrote inclass essays, i filled out endless forms, i responded to teacher's comments.
writing is necessary.
now i'm a teacher, and i write more than ever. on the board, on students' papers, in official memoranda. the list goes on. and i know from experience that my handwriting -- especially as comments on papers or as notes on the board -- means a great deal to my students.
if you think handwriting is obsolete, go to class tomorrow and ask your students to take notes without a pen.