So, once we have cohabited, why do many of us feel the need to get married?

那么，一旦我们同居了，为何我们中的许多人就觉得有必要结婚呢？

《柯林斯英汉双解大词典》

If you love each other, why not get married?

要是你们彼此相爱，干吗不结婚呢？

《牛津词典》

Perhaps this is one reason why people today get married at a later age, especially in large cities where presumably there is a wider variety of options — that is, greater diversity among people.

可能这是今天人们晚点结婚的原因之一，特别是一些大城市的人，大概选择范围更广——也就是说，人有形形色色，类型更多。

youdao

So, suppose you fall in love with somebody and you decide you want to marry them and then somebody was asked to ask you why and you'd say something like, " "Well, I'm ready to get married this stage of my life; " I really love the person; " the person is smart and attractive; I want to have kids" whatever.

假设你爱上了某人,想要与对方一同步入婚姻的殿堂,要是有人问你为什么想要与对方共度余生,你大概会说，“现在我已准备好要开始婚姻生活了;,或“我真心的爱着他;,或“他聪明有魅力;,“我想要小孩了“，等等。

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As long as Brad and Angie make sure they have their estate in order so their children are provided for should something happen to them, why get married?

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But researchers did not directly ask participants why they did or did not get married, Kadan-Lottick said.

CNN: Study: Childhood cancer survivors less likely to marry

That may be why many couples never sit down and have the essential money conversation before they get married.

FORBES: Talking About Money With Your Spouse