You can encode extra things in IDs no problem. E.g. Polish civil records system uses PESEL numbers which, on top of being unique IDs, also encode date of birth and gender.
As long as you have absolute control over every single ID generated, it will work just fine. The problem is that it's way too easy to accidentally generate UUID in a way that ignores whatever rules you set up for it. Also, clocks are hard.
As long as you have absolute control over every single ID generated, it will work just fine. The problem is that it's way too easy to accidentally generate UUID in a way that ignores whatever rules you set up for it. Also, clocks are hard.