That's because the surest way to make everyone miserable is to have multiple objects with the same name. Which one is the right one?
One project I was on had people making copies everywhere; like there were 12 copies of the same assembly in different folders and each person could be working on their own version, but come time to put them into the next level of assembly, which one is the 'right' one? Many of them were just making 'temp' versions to check things out and were in folders named 'temp_something' or 'test_something', but not all of them. And the latest version or the most recent version weren't necessarily the 'right' version. Oh, what a mess.
If you need a copy in another folder, Windows does that and does it well.
If you need to make a backup to save a version in case things go badly, Creo has Backup.