As many businesses do not use every module in GHL, it would be awesome for admins to be able to remove certain permissions from their own users in order to not view some stuff - in my case, all the stuff about communities and payments are totally useless, since I don't use either in my main business, so having a way to simply remove it from my vision would be SO beneficial to avoid visual pollution and distractions.
I think permissions are the easiest way to make a user "not be able to see or interact" with something, and since admins (specially agency admins) are already able to change permissions on everyone else, it doesn't seem to be a real issue to allow them to change their own.
Sometimes I envy the non-admin users to be able to have such a CLEAN screen to work with!