The child does know that the apple is a thing though. That it’s a separate object that can be carried around. Computer vision ML systems don’t even know that!

All they know is how to recognize a common pattern on a pixel grid, after seeing a large number of examples, and then draw a box around it.

The fact that a child has a body and can manipulate the world with all 5 senses working in concert should not be underestimated.