What percentage of schools or colleges even have one person who feels uncomfortable using normal toilets? I'd like to see any statistics on this.
I think this is a mountain made out of a molehill here. Instead of looking at our education and the increasingly high turnover of teachers, we're spending money so that a handful of people can make a #2 without being "triggered"? What's next? Are we going to campaign for special "tall toilets" so that the small percentage of people who are 7"6' can use them without seeing over the stalls? Or "wide toilets" for the few people who are 400lbs?
If you identify as male, use the male toilets. If you identify as female, use the female toilets. If you're not sure, use the toilets that you think you feel more comfortable using.
And if you really don't feel comfortable with either one, use the disabled toilets.