<p>To answer your first question, I have to know what you are comparing it to. You ask whether it will open up more jobs. More compared to doing what? </p>
<p>As far as your second question, it is extremely rare for a person to get an MBA right after undergrad, especially for the elite MBA programs. At the elite MBA programs like Stanford, HBS, MIT-Sloan, Wharton, Kellogg, and so forth, the percentage of incoming students who came straight out of undergrad rarely if ever exceeds 5%, and is usually substantially smaller than that, The average incoming age at all those schools is about 27-28, and the average incoming work experience is about 5-6 years. And the adcoms place their strongest emphasis on your work experience, and accompanying work references. </p>
<p>If you can get into an elite MBA program right after undergrad, then you should probably go for it. But that's a very big 'if'. I wouldn't hold my breath waiting for the admit letter. Instead, you should probably work for a few years and build up a solid body of experience. Then, you will be a highly viable candidate.</p>