> once the junior dev is trained, they will leave. But this is exactly not how it works. The only job I stayed 3 years where I had gaps, told them in advance,

> once the junior dev is trained, they will leave. But this is exactly not how it works. The only job I stayed 3 years where I had gaps, told them in advance, and learned. Where would you rather stay: the job where there is no learning curve or where you can learn something new? I think the reason is that decision makers want to minimize all their risk, being okay if the employees manage a fair amount of all the risk.