So, where are all the cars?

Any car owner in St Ives who has applied for a parking space in one of the town's car parks will know that it usually involves a wait of several years. Only recently the rules were revised and tightened by Penwith District Council. So it is surprising to discover that out of season these car parks are frequently half empty. This is so at times when you would expect them to be fully in use - early on Saturday or Sunday morning for instance when people are usually at home.
So, where are the cars that belong in those much sought after spaces?
One explanation is that people who already have a space at home for their car have also have been allocated one by Penwith in the public car parks which they use for their paying visitors or for friends and family.
If this is so, it is surely unfair and needs to be stopped. Scarce car parking spaces should not be allocated to residents who are already lucky enough to possess one.
Penwith should investigate.