What the hell's wrong with peach? Getting pissed off by rosalina because of the fact she's not doing anything is already questionable, but when peach does something you immediately want her kidnapped again? what kind of double standard is this? also "stupidly strict timed missions" my ass. ive played through the majority of 3d world and i find literally none of these missions youre talking about. besides that galaxy doesn't even have a timer so i really don't see what you're talking about.
Also, paper mario literally has nothing to do with this- this is a 3d mario collection, not a new paper mario game or something. why the hell are you expecting paper mario characters in a non paper mario game?
yeah but most of us already own these games via piracy or previous VCs. i'd rather pay 5 dollars per game for more console variety, stuff like gamecube and n64, not nes and snes for the thousanth fucking time. ESPECIALLY NES, most of those games are so arachic and outdated by today's standards, especially with the super nintendo versions of the franchises being so much better.
Galaxy DOES have timed missions, actually; several Purple Coin Stars are timed, especially the one with the pull stars in the haunted house galaxy. That one's got a very strict timer that doesn't even have the kindness to stop once all 100 Purple Coins are collected, meaning one also has to mess with the pull stars being quite wonky in order to race to the Star itself.
So does 3D World, in the postgame - after Meowser. Several levels there have incredibly short time limits, which can be extended with clocks - if one can reach them.
As for Paper Mario, my point was that many of those characters had far more personality and usefulness than Rosalina does, yet they were never seen again after their game finished; the exceptions are Parakarry (who's seen at the beginning of The Thousand-Year Door) and Bow (who's seen in The Thousand-Year Door's Poshly Heights after the game's done), but that's it.
They're the ones that should've been considered for Mario Kart, not Rosalina.
Finally, that "double standard" you mentioned isn't one at all; Peach is the main goal of the vast majority of Mario games, so she's always had a useful role. She's not just standing in place, and in the Galaxy games she sends the player 1-Up Mushrooms in letters. In 3D Land, she sent postcards detailing her hijinks in trying to escape; that's worthy. The first two Paper Mario games had her finding info on Bowser's/X-Naut's plans then sending them to Mario; while they were tedious and boring gameplay-wise, that's still useful.
Rosalina? Nothing. No 1-Ups, no aid in the various galaxies, no moving Prankster Comets, nothing. Nothing to justify her inclusion, or her coming back in future games. The same could also be said of Daisy, actually, except she's only seen in sports games (and with Ultimate, Super Smash Bros.), so she's not as egregious.
Peach being the kidnap victim and damsel-in-distress is more useful than the perpetually static Rosalina ever could be.