Generally, every individual has some sort of unique skills and abilities. However, they always have to provide some sort of proof about their skills and abilities. This is possible through a display of practical experience in using the skills and abilities that you have. For example, if you are skilled at dealing cards, then you have to show it practically every time someone asks proof for it. Now, we can know about the importance of certification here.
If you had a certificate of expertise in dealing cards, then you would not have to go through the trouble of showcasing your card-dealing skills to every person. All you have to do is take out your certificate of expertise and show it to them. The importance of certifications starts right from the academic journey in the initial stages. You get certificates as proof of completing your school education, high school, college, and university education.