I can understand where they are coming from, a large number of college students DO vote Liberal. I'm in no way saying that's wrong, but I think lawmakers are coming to the conclusion that it's an almost unfair advantage for that party.
However, that is borderline electoral fraud IMO.
Every citizen over the age of 18 has a right to vote.
These are the people and majority rules. It wouldn't be an issue for GOP if these students were voting in large numbers Republican.