There are plenty of examples of high kerbs, especially up in the Park Circus area, but also on Paisley Road West (see picture) , the West End and in Giffnock too.
The high kerbs were originally to do with getting into and out of horse-drawn carriages.
If the council really was serious about putting a stop to kerb parkers, then they could raise the pavements or sink the roads — but then the bollard company might go out of business (I wonder if any councillors have vested interests in fences and bollards).
It’s a bit like the speed camera idea — instead of allowing cars that can exceed the speed limits, governments could quite easily pass a law so that no car could go too fast — but that would not bring in any revenue. Having high kerbs would solve a ‘problem’, but there is income to be had from ticketing offenders — and even moreso when there are double yellow lines.