> if you spend a few years training someone then after that time period they may leave anyway
If it takes years of training till the person is useful and worth it, then there is something wrong with the way training is organized. We give juniors easier tasks then to seniors and train them, but we also expect them to be useful from the start basically.
It really should not take years till they make enough work for for salary + training.
> If a junior comes to work one day and says "We need to Kubernetize all our things" and you say "Actually, our server count is stable and low, we don't need to use Kubernetes, but we do need this new customer-facing feature implemented" then it's quite possible they'll get frustrated, want to argue with you. Of course replace Kubernetes with Haskell, Linux distro of the day, Rust, Go, whatever seems hip and new.
There is no difference between senior wanting to change things. This sort of conflict is normal and final decision is not done by junior.
Most people actually can handle not being given their way all the time. If they have no zone for own autonomy or decisions then they will get frustrated. But that zone should be smaller then the massive architectural decision.
Moreover, portion of people pushing toward new technology and being willing to experiment is something that company should have to keep healthy. Otherwise you all will stagnate.
A lot of it is about opportunity cost. Do you take someone fresh out of school or someone who's been around the block a few times if the latter costs only 50% more? The cost of even a junior but basically able programmer can be quite high if their work has to be redone (heck the cost of a non-junior but bad programmer can be high), so you end up needing to assign tasks that aren't that important or for which large slips can be tolerated. It can be tough to find a supply of such tasks sufficient to keep people fully throttled.
There is no difference between senior wanting to change things
Seniors are more likely to have been through several jobs and environments, and learned that tooling choices aren't that big a deal at the end of the day. They've also already (hopefully) got some accomplishments under their belt and don't need to redo other people's work to have something to show - they're more likely to do higher risk strategies like trying new things as a consequence.
If it takes years of training till the person is useful and worth it, then there is something wrong with the way training is organized. We give juniors easier tasks then to seniors and train them, but we also expect them to be useful from the start basically.
It really should not take years till they make enough work for for salary + training.
> If a junior comes to work one day and says "We need to Kubernetize all our things" and you say "Actually, our server count is stable and low, we don't need to use Kubernetes, but we do need this new customer-facing feature implemented" then it's quite possible they'll get frustrated, want to argue with you. Of course replace Kubernetes with Haskell, Linux distro of the day, Rust, Go, whatever seems hip and new.
There is no difference between senior wanting to change things. This sort of conflict is normal and final decision is not done by junior.
Most people actually can handle not being given their way all the time. If they have no zone for own autonomy or decisions then they will get frustrated. But that zone should be smaller then the massive architectural decision.
Moreover, portion of people pushing toward new technology and being willing to experiment is something that company should have to keep healthy. Otherwise you all will stagnate.