Paid deposit but not going?

Is this possible? Can you pay the deposit but end up not going. I understand that you’d be losing the 400 dollars but could you do it to go to another school?

yes - it happens all the time.

I know that at least one of my son’s schools consider the deposit as a commitment to attend. You can certainly change your mind after making the deposit, just make sure the school knows that you have changed your mind and declining acceptance. Otherwise, you may be liable for tuition and fees.