On: Why are so many people in their 20s taking so long...

[HSO]

Let me rephrase: The claim is correct for real income in relative terms and incorrect for real income in absolute terms.

The claim you're disputing was made about real income in absolute terms. So I agree with you.

But I have added some idle speculation about average net-worth position for the lower 4 quintiles and a hypothesis about why this may have happened.