Emerging Adulthood and Gradschool

But also:

The 20s are like the stem cell of human development, the pluripotent moment when any of several outcomes is possible. Decisions and actions during this time have lasting ramifications.
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"In emerging adulthood, if you spend this time exploring and you get yourself on a pathway that really fits you, then there’s going to be this snowball effect of finding the right fit, the right partner, the right job, the right place to live. The less you have at first, the less you’re going to get this positive effect compounded over time. You’re not going to have the same acceleration". (from: What Is It About 20-Somethings?, NY Times, August 18, 2010)