Don't like training threads. Never have, never will. Don't like being the teacher in training threads, don't like being the student in training threads. Nope nope nope.
I actually really don't like the idea of having to take on Apprentices to begin with unless the Apprentice is part of the overarching plot (as is the case for me on Dissero with Verie and Cerita).
This makes it especially hard for characters that have niche abilities like Avalore with Healing. Healers are rare on this forum because they generally aren't combat-oriented and it takes a certain type of author to write a caretaker as a main character. So when people come up to Avalore and ask for Healer training, I cringe. I try not to lose sight of other people's goals as I quite like helping them overcome their story challenges, but just how many threads must I do teaching a hundred different people the same subject?
So we get to the idea of organic training and development. Learning by doing, by immersion in the story. This is how I train others and how all of my characters have trained. I like to jump into the thick of a good plot and pretend all the "formal" training has already taken place, allowing my students a good deal of creative liberties.
"Do I have to do a thread where I build my lightsaber before I use one?"
Feth no. That shiit's boring as all get-out ... uh, you know, unless you're into that kind of stuff?
No one cares how you built your lightsaber, all they care about is the role it plays in the current post.
"Do I have to do a training thread where I learn the basics of Force Heal?"
Not with me you don't. You can assume it all happened over several behind-the-scenes training sessions and we'll just go jump into the middle of a battlefield to put it to practical use.
I guess what I'm getting at here is that legitimate training threads are never something I've ever required or do. Organic development is where it's at. And as it was stated so eloquently before - communication between masters and students, knowing the end goal, having an idea of where you want to be and when you want to be there. Have fun, build a good story, and do it at your own pace.