The whole travel experience is different when you're female. A lot of this is due to the fact that one is not perceived as dangerous, but at the same time vulnerable.

This means people are in general more open, especially other women, and especially those in cultures with more pronounced differences between the genders. Other women will be much more open to helping, in hitchhiking, in couchsuring and elsewhere. Guys will also be more open, but often enough in an unwanted way, which thus always has to be considered (Schroedinger's rapist). Not all offers should be accepted. Thus, it's easier and harder.