I write almost always in the third person, and I don't think the narrator is male or female anyway. They're both, and young and old, and wise and silly, and sceptical and credulous, and innocent and experienced, all at once. Narrators are not even human - they're sprites.
If you expect to succeed as a writer, rudeness should be the second-to-least of your concerns. The least of all should be polite society and what it expects. If you intend to write as truthfully as you can, your days as a member of polite society are numbered, anyway.