I have not played nor even seen one of these in person but I have heard good things about them. Travel size grand auditorium shape, might be worth checking out it's in your price range. https://www.sweetwater.com/store/detail/AGM5K--washburn-agm5k-g-mini-natural
For a child or a small adult there would be a definite advantage in learning on a smaller body, or 3/4 size guitar , for an average size adult I don't think they would would be any easier to learn on. That said small bodies are very comfortable to play just not easier., great for on your lap dagging around on the couch.