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<p>I think you answered your own question – I want people starting their careers in their early 20s, not their early 30s. We have applied this thinking to our own children, on a smaller scale. Our bright daughter has a January birthday, so we enrolled her in a private KG at age 4.5. She has done well in KG and 1st grade and is now transitioning to public 2nd grade. By our thinking, we have saved her a year.</p>