Half of the children in China don't die for the elderly. Relatives die, children are not around or can't come back to die for their relatives for various reasons. Fortunately, in today's era of science and technology, we can look at the living images of our loved ones and listen to their voices, but this can't make up for our regret that we didn't say goodbye at last. No matter how busy you are, you should go back to your loved ones to say goodbye and die.