Ditto what Nikki said.
It's a combination of things.
Before potty training... there is a "pre-awareness" of them not liking to be wet...and/or of "knowing" when they peed/pooped. But, it doesn't always mean that they "want" to go on the potty or are ready for training.
My son was like that from 18 months old....he'd always tell me when he peed in his diaper or pooped. But, he's 26-27 months old now, and is not interested in the actual "potty training."
I tried, but he's just not wanting to. So that's okay.
Some may say that this is a "window of opportunity" to try and train them. But, for me, it's a time when you can acclimate them and just show them, but not expect it. As your Doc said, don't push.
She is also at the age, when they "pretend play." This is normal development, and is not always the beckoning to actual potty train. But, IF SHE SHOWS INTEREST... you can introduce it perhaps. She is also aware now, of what the potty is for... but not necessarily for herself directly. Let her pretend play with it.. and her toys... that's great she is "role playing."
Most toddlers goe through the phase of taking off their own clothes and diapers. Its just a thing they do... my friend, her son used to do it even in PUBLIC! Eeek! She really had her hands full with her rascal son. But it was not potty related.
Just use your judgment... potty training is so gradual a process... over a span of months and years. **And, might I add...for a child to become COMPLETELY error-free in toileting and "accidents" (ie: wiping themselves & after #2, no pee accidents even when sleeping etc.) ...YES, it DOES take time...and a couple to a few years. TO ME, this encompasses the WHOLE gamut of "toilet training." It is NOT an over-night-error-free-accident free-instant- success- thing-overnight. EVEN if the child is ready. But yes, when the child is ready, then it is easier to "teach" them and by then, they are usually mature enough to just get it quicker.**
Usually by the time they hit preschool or by 4 years old, they will have gotten it wired. So IT IS A PROCESS.... and complete dryness without night-time accidents... is another separate "phase" in itself.
No rush though. Some kids, and boys are not really "ready" until about 3 years old. And it also depends on their own maturity and comfort.
The way I see it, your girl is just in the "pretend play" and "role playing" phase of development per her age group. And with this is the awareness of them simply knowing "when" to change their diaper (as part of a waking routine because that is what Mommy does) and that they can "say it" now, to tell you. It's good she's communicating. Her expressive language seems great.
For my son, once I take him out of the crib from naps or sleep... he knows that is when I change his diaper and he will actually go and get a diaper and his cream and then lie down "for me." It's so helpful! They know full well what "OUR" routines are for "them."
All the best,
Susan