When I hire, It's ONLY junior devs. I prefer just out of University before they can get bad habits. Training a dev takes me 6-12 months for them to break even

When I hire, It's ONLY junior devs. I prefer just out of University before they can get bad habits. Training a dev takes me 6-12 months for them to break even productivity wise. When we have had intermediate or seniors hired they would not listen to anyone else or care if their software was easy to maintain in the future. I run a small team of 6, I have had 0 turnover for 3-4 years. I don't want devs who "get it done" I want devs that enjoy the work and want to share it.