There is more information about you in a database than you can possibly fathom, or probably care to know. Current estimates for the amount of data created in the year 2020 is 1.7 megabytes per human being on Earth, per second.
If you were to convert that to mp3s you would have approximately 6.8 quadrillion hours of music. That is enough listening material to last each individual member of the human race 102 years of music. That's a lot of data.
If the above statistic doesn't fuel your need to think about data governance, in this blog post, I'll dive into the importance of implementing a data governance strategy.