While many governments appear more prudent than the U.S. on fiscal matters, concerns about debt sustainability extend beyond borrowing costs alone. Aging workforces across developed economies are straining public finances, while economic growth remains sluggish despite potential boosts from artificial intelligence. This combination of demographic pressures and weak expansion creates a challenging environment for sovereign debt markets, where investors are increasingly scrutinizing long-term fiscal viability.

The situation underscores that sustainable growth and demographic management are as critical as traditional deficit metrics in assessing government financial health.