Maybe those teachers need to challenge WaterAid too?
washmatters.wateraid.org/blog/we-need-public-and-community-toilets-that-suit-women-and-girls-not-just-men
Where facilities do exist, they are often gender blind and fail to cater to some of the specific requirements women and girls have when using the toilet. For example, toilets should cater for menstruation needs – including somewhere hygienic and private to wash or dispose of used menstrual products – and for the increased or different pressures on the body during pregnancy, menopause, or periods of incontinence (which afflicts women more than men).
Furthermore, existing facilities do not always adequately respond to the different social pressures and realities women and girls face. In the Dhaka survey, three quarters of the 47 blocks were not female-friendly or child-friendly because they were in unsafe areas or had no reliable water supply and/or no lighting, making them impractical, undesirable and unsafe for women and girls.
This means toilets are failing to cater adequately to at least half of the population.
Practitioners and academics are challenging this type of gender-blind planning and design. Awareness is increasing of the need to make toilets female-friendly, and more women are becoming involved in the process of making that happen – as planners, engineers, local government officials and advocates. But progress is too slow, and inconsistent.