Credential protection is also a giant problem in the health care sector, whereby doctors have effectively rigged the system to make it nearly impossible for experienced nurses to upgrade their credentials to become full-blown doctors (short of going back to school and starting completely from scratch). Same with optometrists becoming opthamologists, and so on and so forth. Full integration of the education system for healthcare professionals is required so that the "top up" training required to upgrade skills is purely additive (and recognizes professional experience and on-the-job-learning), not redundant and duplicative to protect a professional credential cartel/monopoly.