When I was in 'Infants' school (1952-54) the staff were entirely female, the only male was the Janitor. When I was in 'Junior' school (1954-58), The Head Teacher and two other teachers were male, the rest (I forget the exact number, perhaps ten or so) were female.

At my boys-only Grammar School, the staff were all male, except for the school secretary and one lab assistant. The staff at the girls-only High School next door were all female.

'Twas ever thus. I think Bozo's ideas are deeply influenced by his own education in the other-worldly surroundings of private, boys-only boarding schools. He really doesn't have a great deal of experience of the kind of education the 99% go through, does he?