Q: I am father. My son is 14 years old and has to shave his pubic area. Can I do it for him once in order to advice him?
A: The father cannot shave the pubic hair of his son since this entails exposure of the satar or private areas. The boy should do it himself. The father can advise him what to do and how to do it, but cannot physically show him. This is haraam.
Was salaam
Mufti Siraj Desai