Sometimes you need both hands for something else while on the phone.
Landline telephones mostly had handsets that looked like the top photo here [1]. When held with a hand they were positioned as shown in the second photo there.
Because of its thickness and length you only had to tilt your head and/or raise you should a little to hold it hands free with the speaker end right at the ear and the mic end still near the mouth.
If you were taking a call while standing for example and needed to write something down in a notebook that was no problem.
Sure. At home. And yes, I'm old enough to have walked around with a phone tucked in my neck.
But if you're in public, and using a smartphone, headphones are always an option. There s absolutely no reason why anyone needs to use speakerphone in public if they're just one person.
