No, they don't. If the debt cannot be afforded, they should default. Start by balancing the budget. This inflation will probably ruin us. Kicking the can down the road makes the reckoning worse. It's not fixing shit, and it is causing way more problems.
Logically, sure, but Japan has been our aspirational model since things went sideways in 2020. Illogically, even the UK is paying back interest on the South Sea company from 400 years ago. Debt isn't going anywhere even after everyone who accrued it is long dead and dust.