DD's school (primary) are insisting all pupils, including those with SEN wear ties at all times in school. DD tells me their classroom is 'boiling' and that the thermometer on the teacher's desk suggested it was above 30 last week. Am I unreasonable to send her in without a tie when temps are predicted to be in excess of 25? Currently around a quarter of parents persistently send their child in without one, with another 10% or so not sending them in with one on hot days. The school is actively cracking down though and kids have been told off today for not wearing them.