Certainly where I live, so far as I can see it is inexcusable.
An estate at the back of our house (built in the early/mid 1980s) is littered with pavement parkers. Garages turned into extensions immediately limit parking and rather than using part of the front garden for parking, owners choose instead to park on the footpath.
For so many drivers it seems to have become second nature to pavement park. On my own road for example, there are open fields opposite the houses, yet when contractors visit the houses, invariably they pavement park when there is plenty of room on the road, both to park and for other vehicles to overtake.
In January this year I had severely restricted sight because of emergency surgery on both eyes. and my wife was effectively my guide dog. We frequently went for walks to get me out of the house as there was little I could do in the house and it was seriously annoying having to be "steered" around cars parked on the pavement. The problem existed both during the day when most people were out and during the evening it was far worse; to the extent I would have taken a screwdriver with me, but for Mrs B having to get it for me and she refused.
On one day time walk, the fuss a builder made was staggering, all because he had to move his two vans which completely blocked the pavement and my wife was riled because of his ignorant parking. And yes, there was plenty of room on the road, both to park and for other vehicles, including emergency vehicles to pass.
I see the same on my commute from a rural area to Manchester. Irrespective of the width of the road or whether or not there are yellow lines, pavement parkers litter the route. Indeed the presence of yellow lines seems to encourage drivers to park further on the pavement.