[JesseK]

At work I rolled out Git to 50 veteran engineers back in 2013/14. It took lots of teaching modules for various levels of understanding. I've taught a few more newbie-type engineers since then. It was far easier to teach Git to the new guys since they weren't already mired in Dimensions or SVN type design workflows.

It will take 1-on-1 time - don't underestimate that. The key for me seemed to be to find the 1-2 engineers who understood it early and then became enthusiastic about it. They were able to help me explain different situations from different perspectives based upon their experiences with it.