I was having a conversation with a well-meaning male friend who was struggling to believe this. I think it is a case of not realising because he hasn't asked/spoken to enough women and isn't a perpetrator himself. For most women I think it is for to say this starts well before even the teen years and persists for 3 or more decades. I have experienced it myself, from school to work, in random situations and still do now. You don't need to be attractive, I am I suppose what you'd call average, you just need to be a woman, ideally unaccompanied. I was talking to one female friend who was harassed every single day by strangers when she lived in Paris, which is one place I've heard of it happening a lot, only it is everywhere. I wonder what your experiences have been?