One thing about being a woman (which I am not for the record, I have a lovely wife who explains things) is that you can't just trust men. They can overpower you, and even though most won't, some will and there's no way to tell who it's going to be. That necessarily means women have to not trust men that they don't know intimately for their own safety.

That concept certainly extends to parents of girls. If there is not a female authority in the house, a sleepover with a man and bunch of girls is questionable at best and tragedy waiting to happen at worst, even if that man is one of their fathers.

It doesn't mean that they have to think that man is "unpacified" to call out that specific situation as inappropriate. It's just a boundary your friend now has to be aware of, and agree to let his daughter go to sleepovers in other girls' homes.

That being said, I wouldn't call this specific situation stigma from being a perceived incel, but more like parents being wary of a single man they might not know that well hosting a sleepover with a bunch of girls.

...

Edit: There have already been a couple of real salty men who take issue with the fact that women are wary of men just because they're men. I get it. I've been there.

But I'm not going to rehash the whole argument I just went through because you might think the line of reasoning that you aren't a rapist means it's wrong for women to take precautions.

It's not personal. It's not a reflection of you as a person. It's just something women have to be aware of.

I'm not going to engage this point with anyone else. I posted some resources. I'd urge anyone who comes away from this comment thread with anger or confusion to just get a woman's perspective first and try to be open minded.