'We need to put a lot more support into helping parents understand the system'published at 10:44 British Summer Time 1 May 2019
Joanna Murphy says more and more pupils are staying for the full final three years.
The NPFS representative points out this is a completely new system and parents don't know about it.
"We need to put a lot more support into helping parents understand the system."
Every school offers five Highers, but the whole school cannot be run just for the pupils taking five subjects at that level, she adds.