To be fair, my MiL who was a reception class teacher and retired in 1976, did say that on occasion she had children start school in nappies, usually she said the youngest child where the mother didn't want to admit that he/she was her last baby.
In the 1970s, the catchment area around her school changed with the council buying a lot of the little Victorian terraces and using them to house problem families. She spoke then of unsocialised children who could not use cutlery or take themselves to the loo cleanly, had very limited vocabularies and had never held a pencil or knew what a book was for..
Our Welfare State. Is it broken?
NHS U turn on trans terminology