Your mail system is only allowing me to send you one attached/embedded image at a time so I’m going to split my reply across three emails.
(part 1/3)
Thanks for getting back to me.
sudo from the command line won’t work for me, because I’m running as the non-admin user “rick”:
rick@MacBook-Pro-723 ~ % sudo /Applications/balenaEtcher.app/Contents/MacOS/balenaEtcher
Password:
rick is not in the sudoers file. This incident will be reported.
This behavior isn’t new with Catalina; the “rick” user has never been able to sudo to root directly.