That seems like a good cause. Her point about women not being able to walk alone, etc. is very true, IMHO. If there is some murderer/rapist/mugger/etc., it doesn't make any difference to him (88% chance its a guy) whether or not you are a big strong man or dainty small woman, because he probably has a gun, or atleast a pretty big knife. No matter what your gender, you are weaker than a bullet or knife.
And, hey, its also against the Iraq war, another plus.