...In fact, you really have to have real world experience to suffer from feature creep....
No.. Any project where you "add features" that weren't part of the original design is feature creep. Experience has nothing to do with it.
The more experience you have, hopefully the less likely you are to have feature creep, as you should be more aware of what it can do to your project..
However, I've seen many people with experience fall victim to feature creep as well, so I'm not convinced real world experience helps at all. Unless you happen to be a PM..

Unless your emphasis is on the "suffer" part. In that, without real-world experience, you still have feature creep. However, since you aren't aware of it, you don't suffer from the results?

desiv