Earlier quoted context omitted.
Median household income in NYC is $57,782. (Individual is $50,825.) And yeah, NYC is a huge, diverse city but even Manhattan's median income is $79,781 in 2017. (Corrected figure)
Hence Scott Sumner's headline a while ago, "The Typical Rich Family Is A Cop Married To A Nurse". https://www.themoneyillusion.com/the-typical-rich-family-is-...
If you took the median income of people between 45 and 60, I bet people here would STILL be shocked at how low it is. The reason isn't a lack of taking life stage into consideration (the link has no analysis of the numbers there). It's mostly about rich folks refusing to admit they're rich relative to most people.