You will see that the reason is that they love they like ,it is necessary and it is life in the everyday life of today's example is a huge reason as to why we can't live without this thing. It's because of the basis in everyday life, we need to have that thing. Is it like to love until it becomes to life become As a part of our lives. It is not a complex matter, but it is not indispensable that it should not exist.