Is it good being close minded?

But I've come to realize that closed-mindedness has benefits: Equilibrium is comfortable. We work for years, perhaps decades, to develop and refine our core opinions and the way we work, interact, play, and think. It's not fun to have that shaken because someone says they have a better idea.

Is being open minded a bad thing?

Being open-minded is generally considered a positive quality. It is a necessary ability in order to think critically and rationally. If you are not open to other ideas and perspectives, it is difficult to see all of the factors that contribute to problems or come up with effective solutions.