I know.  I interpreted this article as: 6 year old kindergartners are more mature than 5 year old kindergartners.  Perhaps they are as mature as 6 year old first graders.<p>Delaying putting your kid into kindergarten is just giving them more time to ripen on the vine.  Delaying also means that you will be supporting them for one more year before they graduate school and also takes one more year of earning potential away from their working years.  Food for thought.