According to the reports from Canadian Centre for Policy Alternatives, tuition for undergraduates have risen by 6.2% annually since 1990. In Canadian universities, it costs an average of $6,186 per year, for a student, not including books, food, and residential fees. From the growth rate, the amount may be increased to $7,330 in four years.
Although students could get student loans, it is extremely difficult for them to repay their loans unless they find an occupation with sufficient salaries. The average debt of $27,000 for students after graduation is rather large and is not a good way for graduates to start their career path.
This puts pressure on the families of students as they have to take out second mortgages to help pay off the debt or even delay their retirement. The government is more willing to lend out more loans than lowering the tuition fee. In my opinion, I believe it is because some families do not apply for loans and pay the tuition themselves. These include families with higher income and international students. Therefore, the Canadian government will attain a higher return from tuition fees.

Article from: http://business.financialpost.com/2012/09/11/tuition-fees-ballooning-in-canada/
Picture from: http://www.cbc.ca/news/business/story/2008/05/15/f-highereducation-tuitionfees.html