As others have mentioned, good idea to have a talk with you parents about SPECIFICs. They might not realize the total cost can exceed 80K per year. They might think it’s 60 or be willing to fund it but not be able to come up with exactly that amount. You cannot be short the funds.
Babson is a great idea. Not an easy entry but good if their curriculum matches your interests and good outcomes.
Having safeties is like having a plan B. I used to tell my kids this is plan A and this is plan B. We only got to plan C once in a flash flood. They laugh, but have incorporated flexibility into their own thinking. Sometimes things go smoothly and kids get into their top choice ED. Usually that doesn’t happen.
You will do well wherever you land.