People marry someone of the same sex if they're in love with them. Love is love. It doesn't discriminate.
Some are, some aren't
marriage is a scary concept for some people.
People don't think this. Gay marriage has nothing to do with a country's economy.
Some people can and some people can't
Some people believe that marriage is an outdated institution. This is due primarily to the high divorce rate in the United States, which leads some people to believe that marriage is not important anymore. However, if two people feel that they should be married, then the option should be available to them.
Some think that age does not matter in marriage while others disagree. It truly depends on the two people in the marriage.
A love marriage would be a marriage that two people have because they love each other. This is in comparison to an arranged marriage, which two people have at the instruction of their parents, or a marriage of convenience, which two people have because there is some purpose served by their marriage other than love, such as the union of two powerful or wealthy families.
I don't think it's just atheists who feel this - some people of all kind of beliefs and philosophies feel that marriage is not for them.
In most states if there is no license, there is no marriage. Some states allow a common law marriage when people have been living together for many years.
There are no causes of homophobia that are unique to Florida alone. The reasons why some people oppose same-sex marriage are the usual ones: animus towards gays and lesbians.
All states in the US view marriage as a legal union of two people, although the composition of the people may differ in some states.
Some religions are offended by the fact that civil marriage is permitted between people that are not eligible to receive the sacrament of matrimony in their church.