Mr. Gol said:
But as far as I know there are two types of marriage, the 'religious' one and the 'legal' one. Gay marriage probably isn't possible with the first, because everyone probably agrees that the church' traditions should be kept. But there is absolutely no reason for not allowing 'legal' marriage between homosexuals. In fact, most nations article 1 of the consitution is about equalty. Surely gays are equals to other people? Bush is having trouble with that logic btw, thats why he wants to change the constitution on this point.
Actually there are some reasons:
the state's laws recognising a pair of citizens as an official "couple" provides (in some special cases) varius rights(like adopting a child) and advantages(no taxes,monthly econ aid) with the utter goal to support such an act,
beneficial to the state (creating a family, with children, new members/workers for the
society)
A homosexual pair wont provide that and since many laws didnt predicted homosexual marriages, can be abused.
Similar minor reasons and technical difficulties require time to reconstruct and adapt the political constitution to the homosexual pairs.
Some states are less prepared than others, homos sould fight for their rights as any other sex did in the course of history, if there is a need society will adapt.