Cars parking on pavements

Why do car owners park their car on the pavement, surely they know that roads are for cars, etc and that pavements are public footpaths? How is it then that many car owners are parking their cars partly or wholly on pavements. Let face it pavements were not built for cars, they are footpaths; we all know that there is not enough room for cars to park there. Parking on the pavement can obstruct and seriously inconvenience pedestrians, people in wheelchairs or people with visual impairments, elderly people and even a mother pushing a buggy.  Motorists that park their car on the pavement are ignoring the law. To be honest, any journey that I take can be dangerous for roads and streets can be hostile to anyone with sight loss as pavements and road works have to be navigated, and there are the cars parked on the pavements even though it is against the law.  In many cases the mothers have to go into road as they cannot get by with a buggy as there is no room to get pass the cars, elderly couples would have to walk in single file. Wheelchair users have no chance of getting pass. Please car owners do not park on the pavements, park in your drive or if not at home in a car park. Thank you