I do what the GP describes as well. It’s not that bad. When you want to enable some limited sharing, it helps to create a new group for all your user accounts

I do what the GP describes as well. It’s not that bad. When you want to enable some limited sharing, it helps to create a new group for all your user accounts. For files and directories that you want to share, just set the group to your new user group, and use the OS group permissions to manage read/write/execute.