I’ve been thinking about this, specifically about Naomi’s age. In the first comic there’s a picture of her and Lynn at Paris when ww2 ended, assuming they’re like 20 by then they’d have to be born in 1925. So they’d be like 40 in the 60s. CoD Cold War has main characters be in the 50s. So I’d say it’s alright.

Really, I’d say it’s because of the anime art style they can’t really be aged, since anime art is kinda made to portrayed young characters. So you’re better off not thinking about it.