<p>you change your mind and go to a different college which accepted you OR do you have to attend Wash U if you are accepted off the waitlist?</p>
<p>If you are accepted, they will call you and ask if you want to accept their admission.</p>
<p>If you say no, end of the story
If you say yes, they will send you acceptance letter.</p>
<p>However, don't expect to receive financial aid.</p>
<p>so really there is no harm done by saying yes to be on the waitlist (regardless if financial aid situation), i might as well stay on it, just incase i dont get into the other schools i applied to</p>