Every junior I've brought in over the past 7 years or so with the expectation of training them has immediately left after I've invested not only money but also

Every junior I've brought in over the past 7 years or so with the expectation of training them has immediately left after I've invested not only money but also significant amounts of more experienced developers time to bring them up to speed before I managed to recoup anything useful for that investment. I can already hear people say pay more, but that isn't up to me and besides that if we're going that route why not just hire the experienced person in the first place? Of course increasingly it's hard even to train at all, I'm getting absolute garbage AI slop from our most junior developers and they don't seem to be learning any more. I sit and try to explain why their solution to some task won't work and they are not engaged with the actual solution they are implementing at all. I've tried to get them to engage more with the AI as a learning and exploration tool, but I'm not having much luck, they're completely focused on inputing the task, really at the mercy of the direction of the tools. I really hope AI comes through for us in the end because it seems we're at the end-game for human learning.