I would say that Thatcher is responsible. Even if she didn't say exactly that "there is no such thing as society" people felt empowered.
When I was at school and the teacher told me off, my parents would accept that I had done something. In fact, when I was in infants' school and didn't eat the school lunches, the Head asked me what we ate at home. My response, think that she was asking what did I like to eat, was fish and chips and pancakes. she called my parents into the school and told me that they were not feeding me correctly.
I think that most people of my age would say the same, regarding parents and teachers and children being told off.
When we lived in London a friend was deputy head of a school near the Elephant and Castle. At that school the teachers were often threatened by the pupils and their parents who refused to believe that their child had done anything wrong.
We lived in Brixton at that time and one day, when I was in my garden a missile was thrown through the first floor window of the house next door. The tenants were eating breakfast at that time, next to the window. I told them where it had come from and so they went to the house to complain. The child denied and the father believed him. They all came round to my house and I confirmed where the missile had come from. The father refused to believe it because his son had said he didn't do it. My response was that he would say that wouldn't he, at which point father and son stormed off.
The incident was a little more complicated because father and son were black and I and the young men next door were white middle class.
In my opinion, the sale of nationalised industries and council houses is at the root of many of today's ills.