>>You make a good point that the language parents around children use is important
My wife still tells the story of the time she said to our son, who was probably 4,
“Look at the smoke behind that airplane!”
“No mommy, that’s a contrail.”
I was never afraid to throw vocabulary at him, at a young age. There’s a similar story from bath time when he came up with vortex when still quite young.
It’s always enjoyable to hear that kind of vocabulary come out of a little one.