We have all the notions...
Well sure, they can all stand up, and they can walk upright, more or less, but not like this. I know it’s not, but this looks like a guy in a gorilla suit. A gorilla’s hips are shaped differently than a humans, so they don’t walk or stand like that. I’m curious to hear what an anatomist would say. If it were simply a matter of him deciding this was something he wanted to do, they would have all done it, because it makes more sense to be able to walk and have their hands free, but they are not designed to walk like that.