“The earlier you go, the more likely you are to pick up kids who may just catch up on their own – they’re just late starters,” states Dorothy Bishop, professor of developmental neuropsychology at the University of Oxford.

At a time when education systems across the world are pushing for educational interventions at ever younger ages, Bishop argues this ignores a huge amount of evidence about what are 4 and 5 year olds should be doing in school - and whether they should be in school at that age at all.