Why not using an artificial language specifically built for simplicity, such as Esperanto? There are barely any users and there is only a small amount of conte

Why not using an artificial language specifically built for simplicity, such as Esperanto? There are barely any users and there is only a small amount of content available. I do agree that it's probably one of the easiest languages to pick up, since it is so regular (largely one suffix per word class, regular inflection, etc.).