The needle-less part is important. In my country, injecting a drug via needle is a medical activity only the patient himself, doctor and the nurse instructed b

The needle-less part is important. In my country, injecting a drug via needle is a medical activity only the patient himself, doctor and the nurse instructed by doctor can perform by law. For EpiPen, the regulation is slightly relaxed so the paramedics, parents/childcare workers/school teachers responsible for the child patient can also use it. But when the EpiPen is needed, the patients often can't administer himself.