I change duplicate names, but recently I find that about every five minutes or so real time, my people's names change to someone who is already there. Sometimes I start out with one name, then five minutes later everybody in the group has the same name.

I started making a list of the original names and what they're wearing, so when names change, I can go back and look at my list and change their names back to their original ones. But then if a kid comes up with the same name and the same outfit as an adult it's hard to keep up with after they reach working age.