You can use arrow keys to navigate in the map.
Societal design usually does not expect some exceptions that mental disorders can bring.
For example, law enforcement is usually not effective in preventing psychopaths from committing crimes since they simply do not care/consider the consequences when committing an action.
Such a person is no longer active in societal activities, gets involved in criminal activities and moreover moves into isolation.
There are millions of examples of people with mental illness who are involved in societal activities, not criminals, and don't isolate
When a person consumes a lot of drugs, his motive of life actually becomes the drug.
Mental illness doesn't necessitate drug use