I know this is bad but...will colleges just assume you're not planning to attend?

<p>I applied to 20 schools, got into 12, and chose 1. Obviously, I only made one deposit.
I was bad and didn't formally decline my admission to most of the 11 schools :/ One problem was that some of these schools didn't even have a button where I could say I wasn't coming next year. Will they just assume that no deposit=no enrollment? Will me not responding negatively affect their perception of me? Should I email them all now, or is it too late?</p>

<p>They should just assume that you won’t be going. I don’t know about the perception or the email. Since schools don’t let people in if they don’t SIR by their deadline, then they know that if you didn’t send it in, they won’t let you in anyways. Congratulations on the acceptances! (and honestly so many people don’t tell schools they’re not going, I don’t think it’s a huge issue. But if you want to go to grad school there that would be the only time I would think you should be thinking about it now, after the fact)</p>