7-8kgs are OK, but it does depend on drum size. If a 7kg washing machine's drum is smaller than a 5kg's drum, then that's silly. Of course some people are big families and do require large loads, hence there are needs for a larger washing machine.
Subject-matter jurisdiction. Subject-matter jurisdiction is the authority of a court to hear cases of a particular type or cases relating to a specific subject matter. For instance, bankruptcy court only has the authority to hear bankruptcy cases.
Territorial jurisdiction is to be distinguished from subject-matter jurisdiction, which is the power of a court to render a judgment concerning a certain subject matter, or personal jurisdiction, which is the power of a court to render a judgment concerning particular persons, wherever they may be.