England - so you should see changes.
Keeping Children Safe in Education (2026):
Schools must provide separate toilets for boys and girls aged 8 and over
(apart from where individual toilets are in a room that can be locked from the inside,
intended for use by one pupil at a time). This is required by the School Premises
(England) Regulations 2012 and the Education (Independent School Standards)
Regulations 2014 which apply to both maintained schools, academies and
independent schools and reflects schools’ safeguarding obligations.
The toilet room is not the same as a cubicle.
Where a school or college provides mixed-sex toilets in addition to single-
sex toilets, schools and colleges should assess safeguarding risks and plan
accordingly, for example, mixed-sex toilets should be in individual, lockable
rooms and open directly onto public areas (e.g. a corridor).
This illustrates single sex toilets first, then you may provide mixed sex toilets but they have to assess safeguarding risks to these rooms opening on to corridors.
Just to highlight single sex:
Schools must not allow children into toilets designated for the opposite
biological sex.
..if a gender-questioning child does not want to use the toilet designated for their biological sex, schools and colleges should consider whether they can provide an alternative toilet facility, for example self-contained individual
toilets, without compromising the provision of single-sex facilities. (Note: my bold)
Facilities, in toilet terms, means washbasins and hand dryers.
There’s also new technical guidance for schools on building design for 2026. These discuss separate sex suites for toilets.