Do you find it a compliment or a form of harassment?
I saw a discussion with a woman saying people need to get a grip if it bothers them because whistling is harmless. I think if I got the odd whistle every now again at this age, I wouldn’t mind, but back when I was a teenager/early 20s I didn’t like it. It was usually never just whistling. It’s usually shouting crude comments too and so found it degrading and embarrassing. But some seem to think it should be taken as a compliment