When my father died I recieved for a period of about 4 years a pension of about 400 euros monthly. At the time I was living with my grandmother and didn't have to pay rent or food. Having that money monthly meant I could buy better quality/organic food, I could support myself with educating myelf with DIP Pro and also attended university (with some money I had recieved from the insurance when my father died), and had some money left for leisure. It was very cool. I stopped receiving it because monoparental pensions here in Spain are only available until you are about 25. But now I have free Universty because of being bipolar - otherwise it would be more difficult for me to attend. Everyone should have free university.
The State has to intervene for social justice and as your post shows UBI is the way!