A funny side effect of the Corps generally recruiting only adults is that the Green Lanterns of Earth are probably on average the most well-educated of all of DC’s hero legacies*
Like, Hal was a fighter pilot in the USAF, for which a bachelor’s degree is a requirement. Guy in his original backstory got two degrees in education and psychology at the same time. John’s an architect, so he would’ve gone to college for at least five years.
Kyle’s run in the 90s mentions that he went to college, probably for art. Simon is stated to have a degree in automotive engineering. Jo went to freaking Princeton University. No idea what she studied but I assume it was something like criminal justice since she became a cop afterward.
The only reason Jessica didn’t get to finish her forestry degree was because she was hiding in her apartment for three years after her friends got murdered. But she would’ve if not for that horrifically traumatic event!!
No wonder Bats don’t like Lanterns. They’re all bright and colorful and college educated, like many of the most infamous Gotham rogues.
*I’d like to point out that this is more so because the other superhero families tend to include multiple kids, who are statistically unlikely to have graduated high school yet (and if they haven’t by now they likely never will thanks to DC’s sliding time scale)
Legit, I’m pretty sure the Earth GLs are the absolute last hero legacy to get a kid in main continuity (Keli’s first appearance was in 2019!)
And bc reading comprehension on this site is piss poor, this isn’t me saying that the Green Lanterns are smarter than all your hero blorbos. Just that the majority of them went to school long enough to get their diplomas.