Again I just don't have any idea of what training people expect. The entire job is basically "we might have some idea of what we want to do, but no one here knows the details. Go figure it out."

What kind of guided learning would you want? How to solve problems? That's what 16 years of school was for!

e.g. my current company's ladder explicitly mentions that the first two levels are receiving active mentoring and supervision. Third (~5 yrs xp) is still receiving mentoring but also providing it. Fourth and up you're generally expected to be the one doing the mentoring.

What that actually means on the ground is that I try to make sure my teammates are asking good questions/paying attention to the right things/thinking from the right perspectives. I can also let them know about some solution or basic approach for what they're doing, but then they need to go read more and think more deeply about what I'm talking about. So to me, "skills" are just something people need to pick up themselves.