Shoes, Ships, and Sealing Wax

I have shoes.

When my niece was learning to talk, she often came out with those short declarative sentences that really made no sense in the context of what was going on. One evening in the car, she said to Victor "I have shoes."

He answered "I have feet."

Now she's in first grade and has no recollection of that "conversation." And she really doesn't understand why Victor occasionally asks her "Do you have shoes?"

I'm pretty sure little kids think adults are idiots.