When you try new things, you are training your mind to be more tolerant of differences.
Conforming to an established system helps a person create their identity. Without an established system, there would be no labels. How would you know who you are and where you belong without labels? Labels help create culture.
Death happens. Sometimes on the news, sometimes in your community, and sometimes right in front of you. First responders are not always the first responders. Every second counts. In many cases, the difference between life and death during emergencies depend on the bystanders.