Definitely being stimulated at preschool.

“Daddy, I want to draw a cube. No wait. I’ll make it a milk carton.”

“ECE is the name of my class. And I want to spell purse, like what Mommy carries. Hmmm. Puh, puh puh. So first a P. Err. Errr. Err. Then an R. Ssss. And a S last.”