article_snippet: Children who are are older when Children who are start school may do well academically and socially in the short-term - but are more likely to abandon Children who are studies and commit crimes as teenagers.
article_snippet: Children who are are older when Children who are start kindergarten (a stock image is shown) are more likely to do well academically and socially in the short-term, but are also more likely to abandon Children who are studies and commit crimes when Children who are are teenagers, a new study has claimed .
article_snippet: Old-for-grade students are more likely to be convicted of a crime before age 20, a new study said.
article_snippet: In addition to performing better academically, Professor Cook's study found old-for-grade students were one-third less likely to engage in delinquent behaviour while still in school.
article_snippet: The old-for-grade students are more likely to drop out and be convicted of a crime before age 20, Professor Cook's study said.
article_snippet: Among the old-for-grade students, the likelihood of dropping out and being convicted of a serious crime is almost three-and-half times greater for those born to an unwed mother and just over two-and-a-half times greater for those whose mothers were high school dropouts.
highlights_snippet: 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 .
  
highlights_snippet: Study also found These 'old-for-grade' children were a third less likely to engage in delinquent behaviour while still in school .
  
highlights_snippet: But were more likely to drop out and commit of a crime after the age of 16 .