This number is before transfers, you really cannot just look at the raw income. A family of 2 adult 2 kid making $22,500 in raw income makes more like $48,700 after refundable tax credits, SNAP, housing, etc [1].
https://www.google.com/search?q=average+us+income+including+...
Take a step back.
A family of 4 with $22,500 in income is well below the poverty line in the US, which is ~$33,000/year.
But do you think a family of 2 adults and 2 children with a "feels like" income of $50,000 is still not scraping by in the US? That's basic survival at best.