NYT calls for an end to legacy college admissions

How deeply ingrained in the process are legacy admissions? Like, is there an actual box on the application form for “Check here if your ancestors attended this school”? Is it a matter of wealthy donors who can work their way up the phone chain and ask for special favors? Or is it just a frequent topic for tiresome essays about “Please write 1,000 words about why you want to attend this college”?

I suppose some would argue that knowing how to leverage whatever connections to which you might have access is an important life skill. I also suppose everyone would love to do away with tiresome admission essays one way or another.

(ETA: This is all kind of addressed in the article, but now that someone’s replied I guess there’s no point in deleting this. Oops.)