I watched this video a while ago. It is obvious that his words are very simple when they are written on paper.
I understand why it appears that they are written by a child. It just seems like he isn't focused on constructing sentences so they sound good.
This is quite different from most politicians.
I don't think that this simplicity is a virtue nor that it helps "common" folks understand him.
I think that this way of speaking is simply different and due to it apparent lack of interest on how it sounds, it appears like they are maybe more honest or that he is focused on being correct or smart rather then what people think.
It is impossible to know however, it might be completely irrelevant to anything.
Here is few first sentences written down from an interview he recently gave about the EU being a foe.
When you read it is quite obvious that he doesn't speak like most politicians.
He obviously doesn't carefully put them together like politicians usually do.
I don't expect anything. I frankly don't expect -- I go in with very low expectations. I think that getting along with Russia is a good thing. But it's possible we won't. I think we're greatly hampered by this whole witch hunt that's going on in the United States. The Russian witch hunt. The -- the rigged situation. I watch some of the testimony, even though I'm in Europe, of Strzok.