Some people can handle directories just fine. But, a lot of people simply do not grasp the concept. For many, many years I have been trying to explain hard disks, folders and files to family members. They simply don't understand the concept. Opening a folder and double clicking on a file to open it and a program to read the file starts: they do not understand it.
For these ordinary users of computer appliances the iOS way of handling files is simply a blessing. You use an application to do something, to write a text, to listen to music, to communicate. Applications that can interact with each other, will interact with each other. Simple.
For an ordinary computer appliance user it is not necessary to be confronted with a file system. Just as a lot of other technical details are hidden from ordinary users.
For these ordinary users of computer appliances the iOS way of handling files is simply a blessing. You use an application to do something, to write a text, to listen to music, to communicate. Applications that can interact with each other, will interact with each other. Simple.
For an ordinary computer appliance user it is not necessary to be confronted with a file system. Just as a lot of other technical details are hidden from ordinary users.