In the Chicago area a dual teacher family has income approximating a Google engineer. I'm related to several examples.
I know folks think the profession took a vow of poverty, and while they're not compensated in this fashion everywhere, they have excellent PR on that front.
Teachers can max out at a good salary, Chicago looks pretty close to where I live where 25-30 years in you can get up towards 90-100k. An L3 Google engineer looks like they start at 190k. That’s an extreme example but I’m just saying, dual-teacher families are probably not exceeding the median dual-professional household salary, so I don’t understand the callout.
Similarly in California, especially for the wealthier districts. Maybe even more than in Chicago.
Based on “millionaire next door” I’m not surprised to see that on the list. Teachers in general seem to live a “less flashy” life than a stereotypical lawyer, and two of them now on pension may have lots of cash laying around - and selling them product could be quite lucrative. Someone’s buying the CDs and overpriced mutual funds.