C.H.
I work in the schools and the kids that have those early birthdates really do benefit from another year. We offer young five's and we also have a transitional 1st grade. The parents that refuse often hear about how their child is struggling EVERY year. The ones that agree, even reluctantly at first, 9 out of 10 times are glad they decided to give their child the time to grow. They end being top of the class rather than struggling to keep afloat. (I know academics aren't his issue, but it all ties together.) I think that the self esteem will be better if he can relate better to his peers. At this age, retentions are easier because peers aren't really aware.