We would like you to assess the QUALITY of each of the following argument (discussing Gay Marriage) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of gay marriage. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gay marriage.

Secondly marriage is so much more than just a union, it is pretty much the centre of our society and the height of commitment and finally homosexuals can be religious too, so why shouldn't they want a religious ceremony?
Valid

then why does the state allow couples who can't have children to get married or couples in their 70's and 80's to get married but won't let gay people get married?
Valid

Without same-sex marriage, opposite-sex couples are paying less than their share because of same-sex couples who pay more taxes without seeing any benefits.

Valid