For those that passed a car test before 19 January this year, or hold a full motor bike licence - there is no problem.
The problem is, by moving the tricycle class to a motor bike licence group, anyone who is just starting motoring, ie 17 and a provisional licence holder - is stymied. To drive, almost all Morgans, they have to take the CBT, and then they can ride a bike up to 125cc and 11kW with L plates. If they then take a test, they can ride it without L plates.
At 19, they can take a further test on a bigger bike, and another at 21 on bigger and more powerful bike to get a full bike licence. Only then can they drive the Morgan. It is my understanding at no point could they have driven it on L plates with a qualified driver, but having passed a full motorbike test, are suddenly qualified to drive what is a car. And although it is probable by that age, they have a car licence, they don't need it to drive a three wheeler. So there is a very real safety argument, as well just making it difficult.
So overnight, the three wheeler absolute minimum driving age went from 17 to 21 - and if a person does not want to mess with progressive access, 24 and direct access.
While the EEC countries do require a staged motorbike access route, not all countries do, and getting a motor bike licence in some of them is remarkably simple. If, and I'm not arguing it should be, the passing of one motorbike test at 17 (as was the case when I grew up) was enough to drive a trike I suspect there would be much less argument.
