The UK at least has a driving testing system with months-long backlogs. They're very slowly getting it under control, but they are doing so by providing around 150k tests per month.

There are something like 30 million license holders. Retesting just half of them every 10 years (and rescinding the licences if the rest) would require about doubling the testing throughput. And it would be political suicide - the so-called War on Motorists is a powerful media weapon. It's an obvious idea that would be very helpful, but I can't see it happening. Unless it's an online test affair, which at least could educate on some of the rule changes. I have confidence they could handily bungle that implementation, however.

At the very least, however, I think they should run some anti-lane hogging adverts and enforce that law more, and also make it a duty of heavy vehicles to slow down slightly to permit overtakes, since that's probably cheaper than the billions and billions they're evidently willing to spend on adding hundreds of miles of extra lanes to deal with the lower capacity of roads caused by bad driving.

The fact that people who passed the test 40+ years ago barely know the laws that have been introduced since is reason enough for regular retesting.

We could ease into more driver testing by requiring retesting after certain types of incidents - vehicle goes off roadway for no apparent reason, collision in a manner suggesting impairment - but that might rely too much on the discretion of a responding law enforcement officer. Perhaps better to let insurance companies do a carrot/stick approach: discounts for periodic driver retraining/testings, required retesting after an older driver is at-fault in a claim. Disclaimer: am older driver by TFA standards.

Oh no, much more often. People above 70 can deteriorate really, really quickly. I’d say yearly tests which include doctors checkups and actually driving with them.

Yes a million times to this! It is crazy that you never have to retake your drivers license.