If someone is saying they "hear voices" or "see things" then they are either lying, and schizophrenia is an easy label to make sure they don't hurt others or themselves
Or
They just have internalised their thinking to the point where they have lost touch with reality and have never really been taught that all their internal stimuli, regardless of what it is, come from them and is theirs (
i.e.an inability to distinguish between the separation of internal and external stimuli due to bad (or non-existent) adult role models).
