As a lady or gent, do you want marriage and kids? I don't, I have enough on my plate with my own person to deal with currently in life, that I can't handle anyone else's issues.
I've been happily married for 22 years, child-free by choice. I love having my best friend be my spouse. While it's not for everybody, you need to do what's right for you.
I'm happily married myself. I completely respect those that choose not to get married for the sake of doing what's "expected." I think people can be completely happy being single.
There is definitely a feeling of security when you're married to someone you completely trust 100%. It's fantastic doing life with a partner that is willing to share all of their wins and losses with you and vice versa.