First, the religion. Take U.S as an example, Many of the largest U.S. religious institutions have remained firmly against allowing same-sex marriage, including the Roman Catholic Church, the Orthodox Jewish movement and the Church of Jesus Christ of Latter-day Saints, as well as the Southern Baptist Convention and other evangelical Protestant denominations. The nation’s largest historically black church, the National Baptist Convention, and its biggest Pentecostal denomination, the Assemblies of God, also prohibit their clergy from marrying same-sex couples.(Information quote from Pew Research Center)The elder Cruz even describe it’s “The devil overplayed his hand”.From the information, we could see that same sex marriage are not accepted by the people with religion since Christians do believe their god do not accept homosexuality. Also one of the biggest reason that obstructed same sex marriage be legalized was the church put a force to the court. It would apply the reason why same sex marriage couldn’t be legalized easily.Second, social pressure. Since, if same sex marriage be legalized, the homosexsuality have to face the pressure from the public vision who don’t agree with this should be legalized also to face prejudice. Therefore due to the social pressure, homosexuality may choose to cohabit instead of marry. This show the other side of fact and brings out an reflection, is same sex marriage be legalized are really good ways for homosexuality since this may become a label for them as being a homosexuality.Third, traditional mindset.Since in traditional concept marriage is a man and women getting together and the purpose of marriage is to produce children but not just base on love between them, as same sex marriage couldn’t produce children, therefore it’s not accepted by the majority of public. This link to the reason why some of the homosexuality not willing to tell others about their sexual orientation.As mentioned same sex marriage still not been legalized in Hong Kong, there are some basic human rights that homosexuality are fighting for. In April, a Hong Kong civil servant who registered a same-sex marriage in New Zealand has won a legal challenge against the government, obtaining civil service welfare benefits for his husband. Since at the beginning, the government had rejected his apply for the welfare for his partner by the reason that athey wasn’t legal couple. This is a great start of fighting for the same sex marriage right and benefit because this show that homosexuality could also enjoy the benefits that heterosexuality have.Also the homosexuality may also facing different unfairness. For example, when one of them for any reason (brain degradation, illness, car accident into a coma) loss of mental capacity, may need urgent money to carry out the medical care or paying other expenses. No marriage protection of the partner, then the guardian responsibility majority will fall into the family, so the comrade have to right on it.