https://www.npr.org/sections/thesalt/2012/12/17/167463286/hospital-bids-bye-bye-to-big-macs-others-may-follow-suit

The relationship between hospitals and fast-food chains is a complicated one. Decades ago, McDonald's restaurants popped up in hospitals from New York to Iowa to California, with leases for as long as 30 years. Hospitals found the long-term agreements financially appetizing. And many patients, visitors and staff have appreciated the availability of an inexpensive, familiar shake or burger.

The leases, though, have made it difficult for places like the Cleveland Clinic, a national leader in wellness, to oust their McDonald's.

the real (((question))) of why is much easier to answer