Yes they do. Some people enjoy firing them, therefore their useful purpose is to make people happy (which at the end of the day the same end purpose for everything people do). Ditto with pools -- some people like swimming, so they also fulfil the useful purpose of making people happy.
Yes they do. Some people enjoy firing them, therefore their useful purpose is to make people happy (which at the end of the day the same end purpose for everything people do). Ditto with pools -- some people like swimming, so they also fulfil the useful purpose of making people happy.