I agree it's hard or maybe even impossible to entirely fix the problem, but there are degrees. You can at least try to mitigate it. And this is not done in Spain even in the slightest.
Check the charts above, pensions have been strictly updated with inflation in the last decades, while salaries (including both public salaries, fixed by the government, and private ones) haven't.
If salaries losing purchasing power haven't caused widespread riots, surely pensions doing the same wouldn't, and the impact on the budget would be noticeable. Of course, it would cause the party in government to lose votes, which is why it's not done.
Check the charts above, pensions have been strictly updated with inflation in the last decades, while salaries (including both public salaries, fixed by the government, and private ones) haven't.
If salaries losing purchasing power haven't caused widespread riots, surely pensions doing the same wouldn't, and the impact on the budget would be noticeable. Of course, it would cause the party in government to lose votes, which is why it's not done.