Yup, and it's frustrating dealing with people with this mindset. I had a woman who held up her deployment of Office 2013 because she was convinced that uninstalling 2010 would nuke all her stuff. It took myself,the IT director, her boss and her all sitting down and us saying multiple times that this was not the case. This woman just could not understand that her files were not "in the program" but in their own container on the disk. Separately she could manage what we were saying when it came to individual components / concepts. I think she reached her internal RAM limit or something trying to envision files in this corner, program goes to said corner to get file.
My son (14) recently asked for a mp3 manager program. I told him to use the damn filesystem, and google it if he didn't understand. He has all his stuff tagged and arranged by folder, only took him a couple hour to arrange 1000's of songs, and he now understands how a filesystem works.