IMO you're way overestimating how much hand-holding juniors need. Juniors coming out of college have a decent grasp of basic tooling like git, IDEs, debuggers,

IMO you're way overestimating how much hand-holding juniors need. Juniors coming out of college have a decent grasp of basic tooling like git, IDEs, debuggers, and yes AI coding assistants. We just hired two recent graduates and they were both getting meaningful work done independently within 2 weeks. They still need code review and guidance, but it's not like they need a senior watching over their shoulder telling them how to write a function in python. You're going to have to teach them about the unique frameworks and processes at your company, but you have to teach seniors about those things too. Unless you're doing something really unique, juniors don't need to tie up senior devs "for months". Remember they can help each other, too.