<p>He might as well make the change. My S had a quirky email address (not disrespectful but not serious) all through middle school/high schoo, and college admissions, with no problem. I doubt that admissions officers pay much attention to the email address; few probably ever see them.</p>
<p>However, he (and I certainly agree) really thought he needed a professional-looking email address for career job hunt. So your S will have to make a change for that purpose in a few years anyway.</p>