I don’t understand life

One goes to school to learn.
Then one goes to university or another institution to learn more.
After that, one finds a job.
At the job, one starts training.
After completing the training, one works their way up in the company.
Once one has worked their way up, they eventually become the CEO.
And thus, one has won at life or completed the system.
Or something like that.

But that’s nonsense and irrational.
Anyone can start a company and skip these steps.
Furthermore, climbing the corporate ladder is unsystematic because one should ask the boss for a raise, thereby never having a clear “level system” like in school, where levels are defined by report cards or grades.
Also, no one simply hands over a CEO position.
Positions are also given out due to “connections.”