Answer:
Because these practices are crucial to saving the lives of victims.
Step-by-step explanation:
Knowledge of first aid and emergency practices can mean a great chance of survival for a victim. Many accidents severely injure victims, in which case first aid and emergency practices are crucial in keeping life alive and facilitating even the most complex treatments that may be needed later.
When performing first aid and emergency practices it is important that professionals remain calm, be aware of life's vital signs and ask for help if necessary.
First aid and emergency practices can stabilize the patient until specialist care arrives on site.