Research looked at children starting kindergarten in North Carolina . Those who join closer to the age of six than five are called 'old-for-grade ' These 'old-for-grade ' children did best academically at school until 16 . They were also more likely to be diagnosed with ADHD, and had lower levels of social skills ( such as being able to read body language ) compared to their peers who started earlier.
Research looked at children starting kindergarten in North Carolina . Those who join closer to the age of six than five are called 'old-for-grade ' These 'old-for-grade ' children did best academically at school until 16 . Study also found they were a third less likely to engage in delinquent behaviour while still in school . But were more likely to drop out and commit of a crime after the age of 16 .