No no. By definition, an early decision is binding, unlike early measures that are not binding. You can opt out of the requirement to make an early decision if your financial envelope is not sufficient, and that is really the only legitimate reason to do so. Well, the university that ed admits isn`t going to chain you to campus in the fall, and there`s no legal obligation that you pay for the first year of teaching and have school. So if you visit the campus in April, after ED was admitted at the beginning of the year, and you find out that the university is really not what you expected or wanted, you can withdraw your commitment, and the university will withdraw its offer of admission, but you will have no other options at the university. You can apply to one or more colleges at the end of the year and perhaps open one or two choices, or opt for a year off for university and apply for a wider list of schools next time. However, the ed requirement in the admission procedure is binding on universities, and if you have applied to other colleges after being admitted to ed in one place, apply to more than one ED school, or abandon your choice of ED for another university that offered you admission, you will be faced with the usual consequence of being blacklisted by de ED University. The school will try to inform your high school orientation center and other colleges that you have admitted to inform them of your breach of the agreement. These other colleges will most likely withdraw their offers of admission, and you will have no choice for the fall. There is evidence that early application can increase your chances, but you need to assess your personal circumstances. Some colleges might lock you up as an ED candidate, happy that while you are limited, you meet their general admission criteria and you will be a participant next fall.
Others won`t allow you to delay them to see if your grades or test results improve over the course of the year. You can contact your chosen college`s admissions department to find out if it makes sense to apply for ED or EA when you receive your registration information. Another advantage is that, given the early timeline, you can usually know your admission decision around December for ED I, much earlier than your colleagues (normally February for ED II, which is still 1-2 months earlier). If you are accepted, it will alleviate in advance all the fear of admission to university.