Here's how old your Pokemon characters are now.

Red, Green, and Blue: 33 (assuming they were 11)
Gold and Silver: 31 (assuming they were 12)
Kris: 30 (ussuming she was 12)
Brendan and May: 27 (assuming they were 12)
Wally: 25 (assuming he was 10)
Red (remake), Blue (remake), and Leaf: 24 (assuming they were 11)
Lucas, Dawn, and Barry: 23 (assuming they were 11)
Ethan, Lyra, and Silver (remake): 21 (assuming they were 12)
Hilbert and Hilda: 22 (assuming they were 14)
Bianca and Cheren: 21 (assuming they were 13)
N: 26 (assuming he was 18)
Nate, Rosa, and Hugh: 20 (assuming they were 14)
Calem and Serena: 22 (assuming they were 17)
Shauna and Trevor: 16 (assuming they were 11)
Tierno: 19 (assuming he was 14)
Brendan (remake) and May (remake): 16 (assuming they were 12)
Wally (remake): 14 (assuming he was 10)
Sun, Moon, Lillie, and Hau: 13 (assuming they were 11)
Gladion: 14 (assuming he was 12)

Feel old yet?