There had been rumours during SATs, but apparently it’s rife once GCSE season kicks off. Parents obviously never gossip about or judge how others choose to bring up their kids – insert wry look to camera here – but word on the street at my son’s school was that some parents were paying their children for getting good grades. The higher the mark, the more moolah. Now, experts have gone on record confirming that this isn’t a great idea, which is r…