Is she ready for potty training

I'd allow space to have them sit on the potty any time they take off their diaper. Especially before bath as they are More likely to sit on the potty when you are getting bathtub ready etc.

Then more and more as they approach to 2& 2 and 1/2 It will become more aware of their body especially when they're diaper is off in the bathtub

I also wouldn't do it for naps until approaching 3+ years (and then only if daycare requires it) & night until they are able to walk to the bathroom by themselves. So in my world that's closer to 4.5

I am pushing it out as far as possible though. With the idea that I don't want to have to go backwards after they go into underwear for the psychological damage that can create an environment of

And just because they can do it at a young age. I have found that when they are older it is hard sometimes for them to keep doing it particularly when environments change like traveling for visiting family or if they are sick.
So I have found it being easier than to vocalize or communicate through sign language as opposed to having it be my directive.