Earlier quoted context omitted.
This is a stat that is never sourced and is mostly cited by the wealth planning industry that have an ulterior motive for making people believe it. I’d love to see a rigorous backing of this stat.
A study of British surnames found that those families descended from Norman nobility (e.g. D'Urberville) from the 11th century Domesday Book are wealthier than those with common names (e.g. Darbyfield) today , almost 1000 years later. https://www.theguardian.com/society/2011/apr/03/social-mobil...
Personally I'm leaving nothing to my kids. They benefited (or not!) enough from growing up with me.