Door design and the affordances of push and pull

I wrote about door design a few years ago and listed two similar examples: 

Here's another nice design from an elementary school. I asked a child to open the door from both sides. Note the different handles and how a child (125 cm tall) interprets them. Note also the heigh at where they are positioned (chest height vs. over head height). However, while observing adults they often get confused with the pulling one (trying to push the handle at below the chest height).