One reason for providing this is so that you can have an alias like
alias mv '\mv -=myfavoritearg '
No; quoting any part of the command name prevents alias expansion. Eg 'mv', "mv", 'm'v, m\v, etc all work.
One reason for providing this is so that you can have an alias like
but it's also good for ensuring that you didn't pick up some distro nonsense.