Marriage is not really a human right anyways, apart from the symbolic gesture the state grants priviledges like tax benefits, adoptions rights and so on. Typica

Marriage is not really a human right anyways, apart from the symbolic gesture the state grants priviledges like tax benefits, adoptions rights and so on. Typically the state has to have some kind of justification for granting priviledges in this case it was probably motivated by religion, but it could also be tied to potential child production / child care. Ideally laws would be reformed in such a way that the priviledges granted today are tied to something other than you are a man and woman and want to marry. It could be just you are two or more people who want to marry. In my opinion things especially tax benefits should be tied to the fact that you are actually providing a service (like raising kids, your own or adopted, but maybe just caring for each other financially is enough).