In spite of a mostly balanced budget, the growth of non-current liabilites is accelerating. I wonder if this just is due to an aging population and it's effect in pensions or if there are other factors.
This causes an additional increase in pension costs over time on top of the effect of the country's aging population and is a source of resentment among some young people.
Apparently accelerating the changes saved around £215bn (between 2011 and 2026).