Tried another shell and liked it so much that you want to use it all the time by making it the default shell? Here's how you can change the default shell in Linux.
Ive been using zsh for most of my linux time cause it is trendy.
Im actually planning a move to bash. All else being equal, i prefer gpl-style to mit-style. (Tried fish didnt like it.)
Dyk the "monopoly man" illustration was created by the grandparent of the original developer of bash? And was uncredited by the company who owns Monopoly until a relative publicized this recently.
I am in the process of learning about/choosing shells for my new setup. Can you please elaborate on gpl-vs-mit style - what do you mean? Is it just about licences?