I always assumed it's universal and yes my DB and my DH have trouble believing the extent of it, get very uncomfortable if I recount my experiences and engage in what aboutery.
Apparently DH was once propositioned by a gay guy at Kings Cross station. As I explained to him that is nothing to what I have had all my life: sexually assaulted by 2 employers at casual jobs in my late teens/ early 20s, stalked on 2 occasions and sexually harassed (verbal and touching) on many by patients and relatives at my workplace, propositioned by random men whilst minding my own business in a library, on public transport, in cafes etc, wolf whistled and cat called by blokes in cars and on building sites. Etc etc etc
I am completely ordinary looking and dress fairly conservatively. I don't get the on street harassment now I am in my 40s but I have been amazed how many pervs are still undeterred by my age or my wedding ring. Any time I am travelling alone, eating alone or at a work conference I am not surprised if some bloke tries it on. It's not every single time but it's still fairly regular. They sit next to me when the whole carriage/ cafe is empty and try to strike up conversations. Occasionally if alcohol is involved it will progress to invitations to go back to their room.
The only time I am immune is if I am with a man or with my kids.
2 yrs ago I went to an awards dinner. Got dolled up and went on the train on my own. Big mistake. The male colleague I went with tried it on, so did the random guy I sat next to at dinner and another in the bar afterwards. I was so sick of it I went home early but a guy on the train home sat next to me despite many free seats and suggested we share a taxi to his place where he would give me a massage which obviously I declined. I was still trapped sitting next to him all journey. When I told DH about it he didn't really believe me and thought I was making it up or reading people wrong. That's why I don't tell him about one of his (married) mates who always flirts with me any time we see them and if drunk will try to touch me under the table.
I used to think it was my fault. I was doing something wrong, sending out the wrong signals and these men really thought I might appreciate their advances. Now I see it as their fault entirely. They don't care what I think or feel. They just believe they are entitled essentially to sex with any woman and they would do this to anyone. A lot of them were in positions of power eg my employers and the guy at the award dinner. They knew it would be hard for me to object. Even random guys on trains and buses they know they are physically able to impose themselves.
I used to quite like a night away in a nice hotel at a conference. Great excuse for a break from the kids etc but I always go home the same day now if I can and never go to any dinners. I have room service if I have to stay. I would like to travel on my own, eat on my own, see a movie on my own but for me it's always ruined by these idiots who think a woman on her own wants sex with them.