Social Mobility in Europe

https://sh.itjust.works/post/5785887

Social Mobility in Europe - sh.itjust.works

Source [https://landgeist.com/2023/09/23/social-mobility-in-europe/]

So on average, the lineage in the bottom 10% needs 100+ years just to get to average pay? Does this mean the average is moving down or that the peoples wage is moving up?