Taking your child to school? Why drive?

The sign shows children walking to school, but today's parents appear to prefer to drive - right up to the school gate.  This article in the Scotsman today sets it out well: http://www.scotsman.com/news/opinion/alastair-dalton-cities-must-tackle-scourge-of-school-run-1-4225361

And there seems to be little appetite to address this in Glasgow - a bit like making sure the 20mph speed limit is enforced.