Ever since this continent was electrificated, Americans have been allowed to plug anything they want into their own electrical outlet.
The history of electricity is a biography of modernism. Originally intended just to light homes, electric power was soon used to run sewing machines, fans, teakettles, and toasters. According to Dr. Rachel P. Maines the fifth electrical appliance to be invented, was a device to treat hysteria (which is used in more homes today, than sewing machines and electric teakettles). Shortly after hysteria was cured, electric irons and vacuum cleaners became feasible.
Following the big war, came an explosion of things you could stick into an outlet: hair driers, electric drills, popcorn poppers, and television sets Not to mention, those goofy things that have a big belt and motor and are supposed to help you lose weight by jiggling your belly.
Today a home built only a generation ago is woefully inadequate for the number of appliances that need to find a plug. Hence, there has been a great market in power-strips. In my home office, (built in 1959) I actually have one outlet branching off into four different power-strips to handle all the appliances required of my profession.