The idea someone gets lisenced once and never retests for decades is absurd. Road rules, car technology, bad habits, and health issues all may change drastically over that time period. Regular retesting would be expensive but should be done. Make the drivers pay for it and use it to reduce the subsidizing of roads.
Where I am in the US, there’s no longer Drivers’ Ed. class in public schools, and DMV road tests are so far behind that you have to schedule your test appointment two years in advance.
I’m guessing a major metro area? If you have a friend or relative that will drive you to and from the test, you may find that calling around to the various close by counties can get you tested much faster.
There will be for profit drives ed schools in your area, unless you live in AK, I don’t know what those run since I took it in school, but the racing licence schools are several thousand dollars, and worth every penny.