you either pet it with an evil character or abuse it with a good character
No, it doesn't matter!
Where the chao is raised doesn't matter; it will take the alignment of whoever raises it the most. A good indicator is the wings; if they are dark, your chao is getting more evil, and vice-versa.
YOU COLD-HEATED EVIL PERSON! you gon on to the chao transporter holding a chao and click "goodbye" HE/SHE WILL BE SENT INTO A COLD DARK FOREST AND HE/SHE SHALL BE GONE FOREVER! SERIOUSLY PEOPLE YOU COLD HEARTLESS EVIL DEVIL!YOUR SICK!YOU DISCUST ME!
Either get a two tone grey chao and make him a shadow chao or a two tone blue or sky blue chao and make either of them a shadow chao or a two tone black chao.
Treat it good with both EVIL and hero characters
No you can not make a chao age faster
you can't really make a gold chao unless it's ancestors were gold chao.
it takes a little while for chao to get older but you have to care for it and after a while(depending on which character you use hero or evil)then the chao will go to the stage of chao death.
You can only make hero and dark chao in SAB2. Also Sonic chao are neutral so if you give your chao a lot of run animals you will get a Sonic chao.
You can't make a Chaos Chao look like Sonic, but you can make a regular Chao look like him.
Yes
It just the way the game goes.