uh I typed a response but idk what happened to it. In summary, I hope you're wrong and that culture has changed more quickly because this is/was one of my biggest hang ups about going. When I went to Jordan, I was told that the worst harassment I'd endure were marriage proposals. Then I was physically and verbally harassed almost constantly and followed more than once, even while covered collarbone to ankles. So I just gave up and stopped going outside. One of my mentors who wrote a rec for me knows how hard Jordan was for me and was quick to reassure me that it was nothing like that when she went as a mid/late 20's woman. We're going to chat soon so I'm going to press her on that though for sure.
In my experience there (as a white man), and my interaction with many women (some of whom were locals that worked for me), I would say that your mentor's experience is highly rose-tinted, or cloistered. In many of these NGO's, etc, it is very possible to live in an "experience bubble." You live in provided housing, in a safe and secure area, with transport to and from the places you need to go, and a small number of "safe" restaurants, bars, etc, where the ex-pat community congregates, and the locals never go. (I had this experience when I worked outside of Cape Town, South Africa.) This is how almost all of the ex-pat community lives in places like this. "Diplomats" in a bubble that rarely engages with, or crosses over, with the local community. I hate that. I strove to always live outside of those boundaries. So yes, your mentor could have had that experience in Kosovo, and maybe it was due to her circumstances and the bubble she lived in. Or, maybe the place has changed. Both things are possible, but if these issues are important to you, I would have a very direct, open, and honest conversation with her about it. In my experience, it was not unusual for men to openly grope women when they approved of their outfits, be openly sexually suggestive with them, and take umbrage at rejection, including raging outbursts. Like frat bros in a strip bar. Seriously.
I don't remember the context under which she was in Kosovo but I'll find out when we do chat sometime this week. But I definitely appreciate the insight.