I think it isn't difficult to expect that people who acted a certain way in school would act a completely similar way in adult life. Some people change. But personality indicators don't really seem to change all that much. It does take a highly concerted effort when it happens. Those we call "come to Jesus moments" and they are rare.

This next part is all anecdotal, but not disconnected: Even though there are a few people I grew up with that I thought would be successful, but haven't been, most of them are. And generally in unsurprising fields from what I knew of them in our youth.

But pretty much everyone I thought would not succeed still haven't - and pretty much always for reasons that were predictable all along. The ones with problematic police relationships haven't ever been a surprise, even though I understand the potential is always there.

The technical kids are still technical adults. The artistic ones are still artistic today. And not surprisingly, the slackers are still slackers, the cheats are still cheaters, and the bullies still lack self control.