Dom/sub , brat, babygirl, little

Not sure if anyone here would know about this

Am I wrong?

My friend asked her other friend if she was a brat or a baby girl and she said she’s a brat

But the other girl said that she’s both but she’s likes stuffies and acting like a child (a little) and that brats and a baby girls are the same thing and I disagree

I told her that she’s a child (a little) you like acting like a child and playing stuffed animals/toys and that brats are more disobedient , smartass(etc) towards there doms

My friend said she a brat she’s not a little she doesn’t do age-play or act like a child and play with stuffies/toys , my friend just likes being “difficult” towards her dom,

I am confused