Project with a single developer. Main automation used daily by 50% of the team past few years.
...
git server setup? done
hands on workshops? done
invited to ask more questions/for assistance? yes
....1 month later....
Q: Why haven't you pushed your code to the repo? Did you encountered any issues?
A: Why it has to be in the repo when the source code is available on my computer and I copy it into shared folder from time to time?

Everything is set up and was served on a silver plate. I would even assist with the commits before they get used to using it. More than half a year have passed. Yet the source codes are nowhere to be found.