I really can!
Even a /few/ of mine are, but I'm trying to work out the problems.
But you know what the main aspect to this is?
People have no imagination, and don't do their homework anymore.

Here's a few common..misconseptions I will clear up:
Kitsune grow a new tail every hundred year untill they have nine. Your little teenager needs a better excuse for the extra limb other than, "sHeZ a kItZuN!!!ONEONEONE!"
According to the archie comics, the "force" is Aroura, and her heralds are CHAO. So..there is no angel anything else!
Echidnas are, supposedly, known to all of Mobius to be non-existant, save in Alibon and the Floating Island. They do not live elsewhere!
Less than 50% of the population is Hedgehogs. Sorry to burst your bubble.
Tails does not have 6,000,000,000,000 Siblings. This applys to everyone else in the universe.
Sonic doesn't love you. Get over it.
Shadow has no child. Since he was on the ARK all the time brfore he was frozen, he would have no Mobian women to hump. So there. And afterwards, the time has been at least less than a year between the most recent game (Battle) and Sa2, and he is not dating anyone!
Most of the other cannons are still teenagers, and will not have children for a very, very long time.
} The others..they still aren't YOUR parents.
Shadow and the Biolizard are the ONLY ultimate life forms.
A created being cannot have siblings, parents or any relatives.
Pay attention after Knuckles dies in the Archie Comics, and it's hinted that for those that are not guardians, there is no afterlife. There is no hell, and no demons.
If there were others that were quicker than Sonic, he wouldn't be anything special becuase, quoth Eggman: "Mwahahaha! Without your speed, you're just a normal hedgehog!"


These are the most generic things I can think of..but I won't die if someone posts their character's description so I can prove my point again. :K