The other fields have various ways to filter out people.

* Accounting has CPA exams/certifications

* Law has the bar exams/law school

* Medicine has the USMLE/medical school

Tech prides itself on the fact that "anyone" can be a great tech worker regardless of how you get there - read some books, attend a bootcamp, go to college, or even just start banging out code on the keyboard until you gain experience

Unfortunately, that means that the companies have to have some filter