We can’t claim to be working class, but my sons did go to a state comprehensive, and one went to Cambridge. He didn’t meet anyone else from a state school for over a month, and as for cutlery - well, I thought I had prepared him to cope with anything, but he said he was still somewhat baffled when faced with five knives. The ‘work from the outside inwards’ rule didn’t seem adequate. He did well, though, rowed for his college (he couldn’t row before he went), and the whole experience enriched his life in the long run. He has found that, like it or not, being a Cambridge graduate opens doors.