Personally I think that the majority of women are likely to continue shaving if they can, even if that means using an old and slightly blunted blade that they've used a million times before and know that they're going to get some minor nicks from it.
On a separate but related note (and I apologise for this if this kind of stuff bothers you) a female friend of mine once included a "moon cup" in her character's personal equipment for a Morrow Project style game. I had no idea what one was but she took delight in explaining......
If you want to know what one is in detail then Google it but, put simply, it's a device designed to help resolve a much more pressing issue for women away from the wonders of modern sanitary products.......