The answer to every single one of your questions is, because they want to. I can&#x27;t imagine being without my cell phone, but I <i>do</i> wash my dishes by hand every day. My dishwasher is a glorified drying rack. Why? Because I want to. I want to know my dishes are clean, and I don&#x27;t trust the dishwasher to do it. And as long as I&#x27;m cool with spending my time that way... Why not?