Well, my answers. Rifle-shot, yes, but that is my style.
Mario and Luigi, I presume, are 38.
Peach is 27, about.
Toads likely take about as long as average people to mature.
Yoshies, if you disregard the SMW theories, likely take... maybe 2 years to mature? Hard to say, although once mature, I doubt they age at all.
Bowser is an odd character -- his height proportionate to Mario's changes radically depending on the game. In the SMB series, and in M&L: SS, Bowser seems to be about twice the height of the Bros. -- In SM64 and the N64 MP games, Bowser is about 6 times Mario's height. Erm... this is perhaps the biggest lack of continuity in the Mario series.
Just my .02 pesos.
~I.S.~
Edited by - Insane Steve on 2/23/2004 6:56:19 PM