Are college essays binding??

Are college essays binding? I wrote in my University of Pennsylvania essay that I hope to minor in cognitive science, but I am not 100 % sure if i will. Im considering it, but like I said I dont know if I’ll end up doing it or not. Is it ok to keep that sentence in there ( I felt like it was helping to make a point about how I would benefit from the interdisciplinary education), or should I just remove it?

I wouldn’t worry about it.

Plenty of people change their minds on their major.