It isn’t only grass roots amateurs who fail at this. Once upon a time, there was a medium sized org in a galaxy sized company, that set out to make a Moodle/Blackboard-like, but for all ages, and “cool” (like they knew what that was). The designers were teachers, and the VP was a former god damned state superintendent of schools. Seems like they should have known better. When the time came to shop around for a test site, it quickly became apparent that the app was sort of inherently illegal, and even if it were not, there was no chance of it getting past the bureaucracy. The VP was fired, and the whole org was absorbed into other parts of the company.
I believe most if not all of it would have boiled down to data collection rules for kids. Some of that may have been specific to schools. The extent of those rules meant you could not simply bring the app into compliance without destroying a lot of the innovative parts.
