Debt not only doesn't matter it is a totally irrelevant that is there to enslave the general population into compliance, and creates a distraction for people to worry about.
When you talk about debt you have to consider both the the micro and macro economic impacts.
When you talk about pensioners these are minor micro economic impacts, debt is NOT there to service this sector.
Debt is there for large corporations to advance their bottom line. So long as the equities markets prosper the level of debt doesn't matter you can see this in real life when the US Fed loans billions (trillions) to corporations to either keep them afloat or make money with that debt via asset purchases.
Global debt will continue to expand to infinity! Debt doesn't matter!
