If someone in the house falls (breaks leg or hip, etc) and can't get up, you should have a phone within reach.

Back in the days of all-corded phones, an elderly woman fell and broke her hip in her house. All the phones were on the wall. A day or two later (that must have been miserable!) the postal person noticed uncollected mail, and started looking around and calling.

Today, where do you set your phones, land line or cell? Three or four feet off the floor?

Sue