But rm isn't the only tool which can be misused. Do you have safe versions of tar, chmod, chown,
and mv for example? What about graphical file managers?
This seems much more like something you should be able to do through permissions rather than
adding special logic to every application to "know" what files should not be changed. And of course
there _are_ times you do want to change them even if it is rare, so the tools must also have an