First off: the sentence should be "Why can't I expect to have the freedom, etc".
Second: Why are you not listening? Nor reading?

You have all the freedom you want to change things around, but you will run in to problems if you do not properly take care of the alterations you made to the way things are usually organised in the Linux hierarchy.

Hierarchies usually don't fall out of the blue sky for no reason, and some of these reasons have already been mentioned in this thread. If you want more reasons and ways around this hierarchy, study the links I provided earlier.

If you do not like to investigate people will soon grow really tired of repeated questions. After all, we are no answering-machines.