First aid is an emergency, and we can't predict when and where it will happen, so the ideal situation is that everyone knows first aid knowledge. When someone around us needs first-aid help, we can use the first-aid knowledge we have learned to deal with these situations and even save lives. This is what developed countries in Europe and America are doing now.
The society has done a lot of work for the safety of students, but students themselves need to learn self-care knowledge; In this way, when there is no other first aid support in the environment, students can apply what they have learned and save themselves. Moreover, students can use what they have learned to help people around them!