Growth mindset= Mature people
Fixed mindset= Immature people
Most of the time, people will never grow because of their ego and pride. They always wanted to be the star of the show, they don't want to be the wrong, they are always right. In short, they are the most annoying people you'll ever find. These kind of people will only mature to a growth mindset when something terrible happened to their lives, they will start listening to other's advices and opinions.
When people refuse to listen to the advice and opinions of others or look down on others, they are called arrogant people. if it's done out of proud and becomes their attitude and character.
But some time, if it's not always their character, but just because they see it as not right some time, then it's not arrogant but self opinion or self decision it's also called self esteem.
So is good for some one to learn how to say no, but not always and it should also be said maturely. One should not be seeing him self as always be on the right side but should understand that he or she is human and can make mistakes. By so doing, even if someone comes against him or her, it will not be seen as something negative to him.
someone can change their mindset if they see or feel something, for example they see some of their work friends getting promotions or their friends earning more than them, they will definitely ask why they are not comparable to their friends or people closest to them.
From there, maybe people who are not developing are developing because of the examples they see.
A mature person should learn how to change. Change from one opinion to another happens in different ways due to circumstances that might come over.
One of the mature way one can grow further, is by positive emulation. What does this mean? It means when you see one that is smarter than you, try to imitate him or her and forget about your pride. Don't compete with them!Just emulate him or her and follow the steps your friends followed if really you want to have what they have.