This highlights an important distinguishing feature between the suggestion that there should be legal recognition of co-habitation, such as registered partnerships, irrespective of the sexual orientation of the participants, and the idea that such an institution should only be available to same sex partners as in Denmark and, according to the report, also in Germany. Same sex partners do not have the possibility of marrying each other and, therefore, may seek a form of legal recognition analogous to marriage. On the other hand, heterosexual co-habitees normally have the option of marrying and may be co-habiting for any one or more of a number of reasons. It may be a precursor to getting married or because they do not want to accept the legal incidents of marriage or because one or both partners may not be free to marry at the time or because they reject marriage as an institution for whatever reason.