Can you give medical advice without formal medical training? Yes. Should you? No. Can you lead a team of engineers if you're not an engineer? Yes. Should you?

Can you give medical advice without formal medical training? Yes. Should you? No. Can you lead a team of engineers if you're not an engineer? Yes. Should you? No. Can you go out, form a cult, and commit mass suicide? Yes. Should you? No. Conclusion: "Can you" and "should you" questions tend to be very different beasts.