Yeah, it is true people change, that's one flaw about marriage. It is meant to keep people together forever but the problem is that people do change and two people people being together forever might turn out not to be the best for them over time even if they get married at first and feel that's what they do want. Some cultures pressure people to get married at a young age but the problem with that is when you are younger, you aren't mature enough to make big life-changing decisions. One isn't always mature enough to be with another person for the rest of their life or know what kind of person they want to be with fir the rest of their life.