So, students "voted" on official Elections Canada ballots - what is the big deal?

According to a lot of blogs - sparked by this Canada Free Press story we are hearing about how high school students made "random" marks on official Elections Canada ballots. The article is being a little paranoid, why not let those votes count? The students in grade 11 and 12 can already get an official ballot by filing a tax return and their votes are as educated as ours (well, the majority of Canadians). Why not let them count?

When I was just under the legal voting age, I found it as fustrating as all that although I pay the same taxes as any voting Canadian and although my passport said I was a Canadian citizen, I could not vote. I see no difference. Let the kids vote!