I can use washing machines... and dryers. And I often do some of my wife's stuff: following HER instructions.

The dials & settings have a purpose...various speeds, loead sizes, temperatures, extra rinses...etc. My work jeans need different settings than sheets & pillow cases.. it's not rocket surgery.

No matter WHAT the instruction MAY say, I put in some soap (determined by the size & type of load), then as water begins to swirl the soap around so it's not all in one place, I slowly add clothes. I almost always allow a 2nd rinse, as wife is sensitive to chemicals, and we want no itches.

Same with dryer... different loads need some varied heat & timing.... my work jeans and heavy towels are not particular.

Gee, Bobert...you can tear a motor apart and do 237 complex things with an old building. Washers & dryers are easy!