system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why isn't it mandatory for people to retake their drivers licence test every 5/10 years?

Aside from the potential hassle, I feel like so many more accidents could be avoided that it would be worth the trouble as it would force people not to develop bad driving habits.
gpt
It's assumed that if you haven't gotten any major speeding tickets, been in any major accidents, etc. that you don't need to be retested.

The hassle of retesting everyone would be an enormous hassle. Look at how crowded DMVs and DriveTest Centres are already.

It's a cost-benefit kind of thing. If 1% of drivers are bad enough to have their license taken away, then is it worth the hassle of testing 100% of drivers?