>>44785228Only specific protagonists are 11 or 12. Them being the RBY/FRLG, RSE/ORAS, and SM/USUM (Hau is also 11, Lillie is probably 12-13). Hilda, Cheren, and Bianca are 16 in BW2, and Rosa and Nate are probably the same age. Serena and Calem are driving age according to an interview, so 16-18, and we don't know the ages of Ethan and Lyra, Gloria and Victor, or Dawn and Lucas as far as game canon goes. It doesn't help that the anime directors specifically refer to the female protagonists as eye candy either.
Characters like Mallow and Bea are somewhere around 16-19 judging by dialogue and design, and Nessa, Sonia, and Klara are all grown adults (as in 20+), and most gym leaders in the games are clearly intended to be teens (mid like around 16) or adults as well, with the exception of Tate & Liza, Allister, and a lot of the Alola trial captains (except Kiawe, Mallow, and the kahunas).