Voice is something you’re essentially born with. You can technically change it, but not easily and it takes a lot of time. And similar to height, women unanimously agree that guys with deep voices are more attractive. A man with a high-pitched/nasally voice will almost always be seen as unattractive. An otherwise 9/10 guy instantly falls to a 5/10 if he has a high-pitched voice. Not to mention the myriad of negative stereotypes associated with men that have high-pitched voices. (Annoying, childish, autistic, feminine, weak, etc)