Ah. Species age.

See... I left Brek's age at "adult" simply because of that age conundrum, then added in the "20's" interpretation for a more human understanding of his development. His species is a long lived one that measures time by their own system. They develop in something similar to an insect cycle-- egg, larva, a cocoon, adult, venerable, and an optional rebirth.

I didn't want folks to wrap their heads too deeply into it, since I've done it for them haha. Plus, I planned on explaining it IC if the topic ever came up.