A world with actual job imprinted into your soul may limiting and bad for some.
But maann, that sounds like easy place to live for many. After all, you don't even have to think about what you wanted to be. It's already dictated. Not to mention, Imagine not needing any resume and come to job interview and just show your stats.
Here, i'm software developer level 100. I'm engineer level 30. Or I'm billionaire level 50, you should trust me bro.