My personal experiences is exactly the same. In 2012 my old high school rolled out whatever the Google Apps for Education equivalent program was. They auto-generated usernames and passwords based off first and last name. Not only did this lead to a large number of students and teachers getting """hacked""" but most students ended up triggering the rate limit for incorrect passwords and the teachers eventually gave up on it. 5 years later they seem to be doing better but never underestimate the number of hurdles rolling out tech into an education environment. You either sync 1:1 with AD or convert water into wine, otherwise you are not getting adopted probably.