I don't think it's necessary for everyone to learn first aid skills. Many people might never face a situation where they need to use them. Plus, professional medical help is usually close by, so it's often better to rely on experts. Some people might panic and not use the skills correctly, which could make things worse. Also, without regular practice, people might forget what they've learned.
我认为并不是每个人都需要学习急救技能。许多人可能永远不会遇到需要使用这些技能的情况。此外,专业医疗帮助通常就在附近,因此依赖专业人士往往更好。有些人可能会惊慌失措,无法正确运用技能,这可能会使情况变得更糟。而且,如果没有定期练习,人们可能会忘记他们所学的知识。