I agree 100% on Airbnb needing to figure out a solution for this!
My wife and I partner together to run our Airbnb business and this UX has been painful to deal with to say the least. I am the co-host therefore I don’t have the same access to features/functionality such as insights, response templates, etc. This means I have to log into my wife’s account to utilize the templates we created (or create duplicates on my account) or log into her account every time I want to review insights or other features only available to the host.
Understanding other folks opinions on this, but it really boils down to Airbnb streamlining the host/co-host UX and creating a feature/functionality that allows hosts to add co-host(s) and determine the co-hosts level of access/permissions.
This is a common practice for businesses (especially in the banking/financial industry) where account owners can set up roles/permissions for admins, accountants, general users, etc.