this post was submitted on 17 Jan 2025
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[โ€“] The_Picard_Maneuver@lemmy.world 10 points 1 day ago (1 children)

Because otherwise the data would be artificially lower in areas with more children.

For example, imagine a suburb in Utah filled with college educated software engineers with big Mormon families. If you count the kids, it might look like people there don't have degrees.

[โ€“] usualsuspect191@lemmy.ca 4 points 1 day ago

Doesn't a bachelor's take 4-5 years, with people starting around 18-19? I guess we're only talking about a year or two so the higher age is to help cut down on the noise (doubt there's many people with bachelor's dying before 25 to skew the results)