From what I understand, the directory /etc/skel/ prettymuch contains all start up files for various shells. What I don't understand about it is that when you create a new account, everything is copied from this directory including other start up scripts for a user's non-native shell.
Has this always been the case? Does the root user or the actual account user just remove those unnecessary files or is there an easier way to do it?
Yes what i know it has been this way for a long time, it workes pretty much the same on unix system also. The useradd command copies everything that lies in the /etc/skel directory to the users home directory.
You can adm that to remove files from the /etc/skel directory. Only files how recides there will be copied,