[manlobster]

You could view the trial-by-Leetcode that people undergo when they switch jobs every 4 years or so as a form of relicensing. One advantage that the current setup has over officially proctored examinations is that you get to try again repeatedly until you are successful.

[pseudalopex]

Other industries do not require repeating the license exam. Many have continuing education or other professional development requirements. These can be expensive and time consuming but not difficult generally.

Real licenses do not expire without notice. Real license exams are more consistent, have clear pass criteria, and have higher pass rates.