Speaking at the annual conference of the Secondary Heads Association In Brighton, the princess said too many parents knew all about their rights, but too little about their responsibilities.
"I speak as a parent and a parent governor. Sometimes it's not always the children who give us problems," the princess said.
"I am often astonished by the level of aggressiveness that some parents rise to in their dealings with the profession. It is quite extraordinary."
Earlier, the union's deputy general secretary spoke of a growing number of incidents in which parents verbally abused headteachers, likening it to a form or 'road rage'.
Russell Clarke said it was becoming increasingly common for headteachers to be confronted by parental aggression, either in person or on the telephone.
Although the number of violent incidents was not rising sharply, there was a growing level of friction in encounters between teachers and parents - with both fathers and mothers equally likely to be involved in verbal attacks.
Lack of deference
Changing social attitudes had seen any deference towards headteachers disappear, said Mr Clarke - and such a change was in general beneficial. But it had also seen a rise in the number of parents who "focused their aggression" on their children's headteachers.
|
Parents' evenings were also cited as likely causes of disputes.
Mr Clarke said this in part reflected the increasing "consumer" expectations in education, with parents being offered appeals processes and the prospect of greater choice. When this failed to deliver the results they expected, arguments could follow.
She said schools needed more support from parents and the BBC children's drama, set in a comprehensive school, was "wholly unfair to everybody, including both staff and pupils".
"We all know how difficult children can be - but there is a comparatively large number who are amenable to being in school," she said.