Answer:
Downward social drift
Explanation:
Downward social drift is a serious mental illness that is similar to the schizophrenia. In this type of disorder, the person gets afflicted with severe substance abuse that leads the person to slow down in the social identity.
In Downward social drift many people suffer with this disorder such as with different profession as lawyers, doctors, etc. In this disorder, madness occurs first in the form of high delusions. People affected their personal, social and professional life. Relations will suffer due to a high level of delusions.
Thus here Nico's dad had had difficulties in keeping a good job and they have financial difficulty. These all symptoms indicated that he was suffering from downward social drift