That's so true. When you're not married, you can decide one day you want to quit, and that's it, the end of the story. When you're married, you need to prepare to lose money. And why? The only reason is because you signed a piece of paper. It's a very bleak perspective.

This is strengthened by culture: look how the marriage is presented in the movies, for example. The woman is anxious if he's going to propose, then he has to buy a very expensive ring just to propose, then she is extremely happy as if she won a lottery (not because he loves her, but because he decided to marry).