Earlier quoted context omitted.
There's no "enforced savings" that I know of in Europe. 3.50% in the US sounds extremely low to me. It has fallen a bit recently but the savings rate was about 25% in France in 2020. Common knowledge says to strive to save at the very least 10% of one's revenue around here.
It seems like savings include pension ([1], but it is a bit unclear to me) , and that is a kind of forced saving (as in many places in Europe you can't choose to not get pension and get it as cash to spend instead). 1: https://ec.europa.eu/eurostat/statistics-explained/index.php...
I think that "the net adjustment for change in pension entitlements" is there to take into account the expected reduced future income from pension entitlements dwindling over time (edit: in effect, making pensions count as negative savings) somehow, but it's unclear.
I looked for another perspective but the French national bank doesn't mention pensions in its explanations[0].
[0] https://www.banque-france.fr/system/files/2024-08/epargne-de...