The standard response to this is.
If women and girls don't know they have a cervix, that's an education issue. Effort should be focussed on improving that.
Or the slightly less helpful response on here once, which basically said if women and girls didn't know what/ where a cervix is, then they're stupid. And subtext, if they don't understand stuff it's their own fault for not paying attention at school...
The back point has been raised before and is true of course.
The thing that I find weird is that the cervix is internal. It's not like saying if you have ears or something. I think some women can feel it if they stick their fingers right up and have a good poke around. That's not really the sort of thing that a lot of women are going around doing though.
So saying it's for people with a cervix is still not right.
It's for people who assume they have a cervix based on their sex.
Um. All very clear and sensible.