There are a numerous prejudices about schizophrenia.
Schizophrenia is rare condition. In fact it is not true, even 1% of population suffer from schizophrenia.
People with schizophrenia cannot be helped. In fact with adequate treatment 60% schizophrenic patients can live productive lives and have a good quality life.
A schizophrenic patient is irresponsible, like a child. This attitude leads to the opinion that instead of the ill person, somebody else should take care of everything. In fact, there is always a part of the activity that the patient can take care of , even when a psychotic episode is in progress.
People with schizophrenia are dangerous. The fact is that sometimes delusions and hallucinations can lead to violent behavior, but most of the schizophrenic patients are not more violent than common people. In contrary, they could be a victim of violence or maltreatment.