Why not abolish marriage certificates for everyone?

[kılıç_mehmet]

Well, abolishing marriage certificates is the same as abolishing marriage.
Marriage is a legal bond, its an institution, a public institution.

If you do not wish it to be certified by the state, you might as well abolish it.
Though really, I'd say that anyone who wishes to do this for the sake of a "sexual minority" is a madman.

Aren't there enough people in this world?

I think this is a rather stupid question, if you don't wish to have children, you're free not to have them. But having children is actually the thing that keeps a species from going extinct. By this faulty logic, we should start a third world war and make sure that we're making extensive use of all forms of nuclear, chemical and biological weaponry to make you say "there aren't enough people in the world".

As for your inquiry about "why do we want more of society to be married and have children? " is that a child born into marriage, therefore into a proper family is able to support the child well into college without the child having to actually work to support his single mother, or the single mother having to work more than two jobs to support her children.

That's how I got my diploma. I didn't have to work a part time job to get it, my family was there to support me, and I assure you, not just my father and mother, but my uncles, my aunt, my grandparents...Here, family is everything, but you seem to be so eager to discredit its use to society.