Correct. Eh.
I would suggest the gentlemanly thing to do would be to practice on yourself. Then you can really learn from one's own mistakes.
The Feather Nape and Body razor with Proguard blades, Is sold for these purposes.
I would definitely shave a pretty young ladies legs, but that's about as far as I would go.
I think they LASER that area now.
Laser hair removal - MayoClinic.com