It will depend on what they consider upward mobility. Two teachers in my area make 120k a year together. They aren’t Bill Gates, but for this purpose ther children are in the rich category. And social workers make 50k a year, so their child would be a negative in this evaluation if they chose this career. Going backwards.
Solidly middle class. The biggest group in our nation. So I guess upward mobility only counts if you are below middle class. Which is fine. But it’s going to get more confusing than ever.
And how long will they wait to measure. If someone goes to med school or grad school or PhD route they will ruin the averages.