Are legacy admissions fair?

There’s a part of me that wonders whether I would’ve gotten into the university I attended had I not been a legacy (both parents attended)—it was even asked about on the application. My grades were good, but not outstanding (I got a B+ in physics!)

How fair do you think it is for being a legacy to have any effect on your likelihood of admission? Should it be something colleges should phase out or should it be up to the individual institution if they want to take legacy status into account?