@dj
Yes, I know that's happening. It's been happening in schools for years.
The NHS spends a fortune on training staff, but many of them don't stay, so the NHS doesn't benefit, or the service is outsourced to private providers, who don't spend money on training. That's partly why nursing degrees are no longer financed by the NHS.
The compulsory levy is a way of getting some of the big /health anciliary providers to pay. However, you can bet anything that they'll find some way of squirming out of it. An organisation acting only as an employment agency won't have to pay, as far as I can see.
However, there are still some healthcare and ward assistant jobs provided by hospitals. It actually seems unfair that the NHS has to pay for the training, while agencies will profit. Presumably people will have to fund their own training when the NHS disappears.