The US retirement system has received a C+ grade, ranking 29th out of 48 countries globally. The Netherlands, Iceland, Denmark, and Israel top the list with A grades. Experts cite a lack of access to workplace retirement plans and "leakage" of savings as major factors contributing to the US's low ranking. Social Security is a significant income source for most older Americans, but its minimum benefit is lower than in other countries.

Source: https://www.cnbc.com/2024/10/16/heres-why-the-us-retirement-system-isnt-among-the-worlds-best.html