We know that Xavier’s school is a horrendous place to get an education, and if this guide by Caldwell Tanner and Owen Parsons of College Humor is any indicator, it’s like all of your middle-school health class nightmares times ten-thousand. Witness Charles Xavier’s The “What’s Happening To My Body?” Book For Mutants.
https://gizmodo.com/10-reasons-why-xaviers-school-for-gifted-youngsters-wou-5837961
Hat tip to Sven!