Jon ) gurgled happily, sounding much like they
were saying :

But people already pay according to their usage of the roads - and the
efficiency of their vehicle. Have you seen how high the taxation is on
fuel?

They do not pay in anything like direct proportion to mileage. A
average-mileage driver cutting their annual mileage by, say, 5% will
not gain a 5% fall in their costs, (and one increasing their annual
mileage by 5% will not pay a 5% increase). Obviously there will be
some change, but it will be smaller than the change in mileage (the
exact relation between the change in mileage and in costs will vary as
many factors are involved).

But the fixed costs will remain for the vast majority of people - the
saving to their "motoring budget" subset of their transport budget will
only be the marginal cost of the mileage they're not doing.

Unless you're suggesting that there's going to be rather immense short-term
redesign of the entire retail and leisure infrastructure of this
country...?