Where I worked most training was done in what they called chunking, small bits building on past bits.
That is kind of what this is going to be, and it is a multiyear process, as there is the knowing, but the applying as habit takes time and enablement.
Lol, it can be easier to train strangers, as they are not "too familiar" and control themselves a bit more :)
I only had to train co-workers, I sort of liked it, and sort of hated it, but it was stuff that needed to be done.