During my career as a Driving Instructor Trainer, I often see learner drivers who are struggling - this often comes from the way they have been introduced to new topics by their instructors.
A learner who is working on roundabouts but who is filled with panic and fear about stopping and starting again from the roundabout's give way line.
Is this a roundabout problem, or something else?
Learners can 'fear' certain topics or scenarios, because they don't believe in their own ability to do the real basics of driving - stopping, starting, changing gear and steering.
For PDIs on a trainee licence in particular, I often see that they're really unsure of what and when to introduce to their learners.
This tends to result in a 'mish-mash' approach - creating learners who can do a little bit of everything, but have actually mastered nothing.
For me, it's imperative to build upon a solid foundation.
If you feel you'd benefit from a training session on how to put together a really effective, step-by-step syllabus of skills and subjects for your learner drivers - let me know and I'll be happy to help.