I would suggest you're already in that situation Darren and have been for a while.
It's not necessarily the lack of experience of learners that's a problem - it's the lack of everything: control, confidence, understanding etc.
Which is why I suggest CBT is an absolute MUST before new learners are allowed on any road let alone motorway.

But we should also bear in mind:

One never stops learning.

One is merely taught to pass a test.

And clearly, some drivers seam to have got their licence free with a packet of cereals!