CPR and first aid are key skills that are important to everyone, not just scuba divers. As an Emergency First Response Instructor, you teach skills based on internationally recognized emergency care guidelines, and you can offer courses to anyone.
The great thing about EFR courses is they make learning easy by providing a comfortable environment to practice emergency care skills. Your students finish the course feeling confident with their new skills and ready to help someone in need.
The only requirements are that you're at least 18 years old and have Emergency First Response Primary and Secondary Care (CPR and First Aid) training within the past 24 months.
An EFR Instructor rating is required to become a PADI Instructor, but you don't have to wait until you're ready to go pro. You can complete or refresh this training during your PADI Instructor training.