As one batchelor to another; I hope you have your flame retardant suit on. :Q I, on the other hand, fear no flames. I am Asbestos Man!
You'll hear about the whole companionship thing (I say, "buy a dog, it's cheaper")
You'll hear about the whole life-partner thing (I say, "buy a dog and the car you always wanted")
You'll hear about the whole starting a family thing (I say, "go see a shrink, you need help")
You'll hear about the whole "time to settle down thing" (I say "huh, 30 and balding and feeling the window of opportunity closing")
You'll hear about the whole "need someone to share my triumphs and failures with" (I say "you need and emotional crutch")
I could go on. And on. But I won't.
There is no reason to get married. You can cohabitate for life. These days, marriage is far too risky, financially to be worth the risk. Quadruple that risk if you're dumb enough to have kids. I don't have a link, but I've read in multiple studies that in the past 10 years, approximately 50% of marriages have disolved. Scary.
Every man should have a woman. Every woman should have a man. You don't have to be married to have someone special that you love very much.
Those that say "but if you really love someone, the ultimate expression of that love is the bond that is marriage" make me laugh, because those are typically the folks who have never been burned.
Never had a woman light their clothes on fire. Never had a woman burn their car. Never had a woman change the locks AND call the police AND make a false report of assault...all so she could have the apartment for herself and her new boyfriend. Never had a woman use their child as a weapon against them. That hurts worse than losing any possession. Having your young son say "Daddy, why does Mommy say you are a bad Daddy? I like you...." hurts worse than any kick in the nuts I've ever received.It works the opposite way as well. I know at least two women that got burned bad by their husbands/boyfriends.
Yeah, I'm bitter. And safe.

What's mine is mine and what's yours is yours. If it doesn't work out, I'll help you carry your stuff to your car and have a nice life.