&gt; not including the few savants who graduate high school before turning 18<p>I graduated high school before turning 18.<p>I never skipped a grade at any point.<p>My final year of high school consisted of taking four classes, of which three were taken only because they were graduation requirements: &quot;English 12&quot;, &quot;History 12&quot;, and &quot;Acting 3&quot;. It may shock and surprise you to hear that the content of &quot;English 12&quot; and &quot;History 12&quot; was not appreciably different from any other &quot;english&quot; or history classes at the school. In particular, they were not different from &quot;English 8&quot; and &quot;History 8&quot;, except in that they counted toward the UC &quot;four years of high-school-level english and history classes&quot; requirement and the &quot;* 8&quot; classes technically didn&#x27;t.<p>It doesn&#x27;t take a savant to graduate before turning 18. All it takes is realizing that staying in high school is stupid.