X-Men

according to https://comicvine.gamespot.com/kitty-pryde/4005-3548/forums/how-old-is-kitty-pryde-now-376675/39

Posted by John_Feaster (359 posts) - 8 years, 10 months ago
 * poor Sam Guthre (Cannonball) was 19 when he first appeared in 1983, and 21 today.
 * Meanwhile, Roberto Dacosta (Sunspot) was 13 at the same time in the same comic...and he's also 21.
 * Now THAT'S a confusing timeline ;>)