You appear to be in denial that this is even a possibility, yes, it might well be only 3% of the fuel sales currently (makes a mockery of the industry claim thought about EV's flying out the showrooms, which we all know is not true, currently, if it was, then there would not be any grants for them). But, this figure, unless there is a massive relaxation or reversal of the net-zero push, that figure will steadily increase, and the fuel duty will begin to decline at a bigger rate, and it will hit the poor government's ability to balance the books. They have to be looking at how they can recoup that lost income, and the answer is right there, in the car, all EVs are recording the miles driven, and I dare say even the route taken especially if they have sat nav built in. Data is already carried along power lines, the technology for that has been around for many years. With the now digital VED, and the network of cameras across the UK and police cars, have ANPR capabilities. The phasing out of cash been underway for some time, the introduction of the digital ID system which we are supposed to be getting, bank accounts being scrutinised by government bodies, and will be linked to your digital ID. Payment can be deducted direct from your bank account, and your bank account could also be frozen if they so wished, (apparently this is already being done in places like China and Vietnam, for example), also with so many EVs now having over the air software updates and even diagnostics done the same way, they could also if payment was not being made due to lack of funds what ever in your account, disable your car while your charging overnight at home. All of these things are for a vehicle that must be plugged in to refuel, are or could be, a real possibility. True with the ANPR cameras they could attempt to do similar with ICE vehicles, but they would need far more cameras for that. When you stop and look at it like that, the book by George Orwell 1984, could become a reality. So the moral here is, never say never, because it just might.