Should the old man fall down to help debate?

What should be helped is only the appearance of some such old people. Should we choose to ignore them? Even if you ignore it, will a life disappear? I believe many people are willing to help others, just afraid of being blackmailed, but please understand that this is only a minority after all. I believe that the students here are good people in essence, and most of us are good people. Since there are so many good people, why hesitate and doubt in life-threatening situations? !