Is it too soon?

So, let me explain. We have a little potty that sits next to Cooper's bathtub. He likes to sit on it and push the buttons to make it sing songs. We all stand there and sing together. We really just have it out to get him used to it so he isn't scared of it when the time comes. Well tonight after we sang the songs (multiple times I might add) he looked at the big potty pointed at it and wanted to sit on it. We sit him up there, he looks around and then he gets some toliet paper. And he was ready to get down. Seriously!!! Isn't it too soon for him to get this? He isn't even 2 yet! I told you - he is growing up.