Learning first aid is the basis for any health care or medical field opportunity but can take you in many directions. Knowledge of first aid is also necessary to be a flight attendant and childcare provider where you will use active and reflective listening skills to assess the situation and provide a quick and efficient solution to help the victim. If you are looking for medical career opportunities, first aid is the first thing you will need. This will help you become an EMT, nurse technician, or firefighter.