Why has the ring never chosen a child before? They have an imagination like no other! Shazam is really a 10 year old, why couldn’t a green latern be?
Children don’t typically have the willpower of adults, but I know it has happened before. The 1st example that comes to mind was Dawnbreaker from the Dark Multiverse, since that world saw Bruce Wayne get a GL ring immediately after his parents were murdered
I think Batman Beyond had a child as their Green Lantern, but I’m not sure I’ve seen this in a comic. It’s a fascinating idea, though.
Does Arisia Rrab count?
Vindetti actually had the ring go to a child to replace Tomar Tu after he died