I really hope they are new grands in something not directly involving computers, because otherwise they would have to live in a cave to not know the difference between git and Github.
This just isn't true. I really only interact with CS/CpE students/grads and I'm constantly shocked at the ability of universities to force their students to use version control without actually teaching them anything about how it works.
Likewise. It's not even that unusual to have somebody using Dropbox to store all of their code, and all they know is that there is a "better system" out there.