"That's milk."

My son has a knack for repeating things, and it makes it hard to figure out exactly what he understands.

As far as I can tell he can't tell the difference between soy milk and cow milk, rice cheese and cow cheese, etc. He doesn't ever think to ask before eating anything either. This really frightens me, especially with kindergarten a year away.

The other day we were in a parking lot and he looked down and pointed to a abandoned (litter!!!) coffee cup. He said "That's milk."

My husband happened to be the one holding his hand and he stopped, looked at it for a moment and said "You're right buddy, that cup could have milk in it."

Now...was this a reaction to my constantly telling him not to touch/eat things? Or did he actually recognize that people routinely put milk in coffee? Was he even aware it was a coffee cup? The world may never know, but I feel like it's progress.