She comes off s somewhere between 28 and 45 to me, if I had to guess and exact number I'd say 30.
Here's a question though, how old is Lance supposed to be? My brother thought he was a dumb teenager since only a dumb teen would think capes are cool to wear in public, but he seems older to me.
Steven is most likely in his late 20s.
Alder is probably in his mid 50s
Iris (Champion) is, like, thirteen at best (and that's being generous)
Diantha is 27-32, leaning more toward 30. Around the same age as Cynthia, I think. maybe they could hang out and trade clothes and battle pokemon, although Diantha is kind of a pushover so Cynthia would win most likely.
