Again, I stand to correct you. Unless you go bankrupt, you are obliged to pay that. It's a debt, just like your taxes. That person will have to pay it, and other than the rare case of 0.01% or less where somebody goes bankrupt and cannot pay for it, there is absolutely zero burden on the taxpayer.
It is the same for any pensions. I just want to remind you and those who might be watching this that other than those countries that have reciprocal agreements on pensions with Canada, you get no old age pension other than what you contribute. My grandparents never took a nickel until they passed their time here, and they unfortunately passed away and were unable to collect any pensions. Most parents or grandparents, for the 20 years, will not collect a nickel of pension in this country because of that.
I think you should look into that prior to making the assertion that Canadians are going to have to pay for the default of any parent or grandparent.