Why do people miss home?

People have been homesick since ancient times, it should be because they have a feeling for home when they are away. Because family members love and tolerate themselves, maybe their home is not rich, but it is a place they call home, a place where they grew up, with memories, happiness, sadness, tears, people you love and people you love, where you don't have to be wary. No matter how hard and tired you are, you will tell your family that they will not scold you, but will only pity you. There, you can put down all your troubles and sleep peacefully, without the boss's face and colleagues' calculations, surrounded by familiar people. In this way, people will be so attached to home and homesick.