Excerpts from greg's message of 2018-03-11 13:47:01 -0700:
Virtualenvwrapper is meant to be a tool for a single user to create
multiple virtualenvs. We have had folks use it the way you're
suggesting, but it's not necessary and as you have found it makes
using it a bit of a pain.
I recommend sticking to the default values for settings like
WORKON_HOME unless you have a strong need for an alternative.
Doug