Not enough to still live there, apparently. Sounds like Canada is good in some respects but worse in others, like making good money in your chosen career. Every country has trade-offs, and the US’s is that a lot of safety nets aren’t there but the sky’s the limit for high achievers. Some people like it that way.
Current-year tuition fees at Carleton range from $3500CAD/semester to $5800CAD/semester [1] for domestic students. The province foots the bill for over half, probably closer to three quarters based on the international student fees. It's gone up a little but it's hardly un-manageable. Both my brother and I graduated without debt by working during the summers, and both scholarships and bursaries are available to help cover the costs -- and loans via OSAP [2].
FWIW I did mean to type $3500 in my original post, which is probably now closer to $5000.
[1] https://admissions.carleton.ca/scholarships/domestic-costs/
[2] https://www.ontario.ca/page/osap-ontario-student-assistance-...