Ahh, how lazy we are...
Do you really need a 1/16th horsepower motor and 300 watts of electricity to open a soup can?
Is pushing a toothbrush back and forth so laborious that you need a battery powered device to do it for you?
Remember when electric utilities sold people electric appliances at cost so they would buy more electricity?
I wonder how many of those office file shakers ended up under desks with feet in them?