Why do numbers exist?
The reason numbers exist is to make life simpler and explain our universe.
So the better you understand numbers, the better your life can be.
That's a pretty good reason to like mathematics.
Apart from the answers to the question "Why do numbers exist?" posted below, you can also read answers at
https://www.linkedin.com/groups/Why-do-numbers-exist-1872005.S.5943156302690656257