Here in Europa we have a requirement for companies and institutions to provide what is called a "privacy policy" which explain to the user, in common language, which personal data is processed, for what, by whom and why. Many lawyers are doing these wrong and try to sell an unintelligible mess of legal text, while the law actually demands that the user can easily understand it. The european laws are especially serious about that, if the users are children. A school in europa would need to explain GoGuardian both to the children and the parents. Things like "monitoring all browser history, social network activity, logging all keystrokes, accessing all files and remotely enabling cameras and microphones" should raise some eyebrows and have parents ask unpleasant follow up questions. Also the "for what and why" parts are enforceable limits, any undisclosed processing is illegal.
In contrast, Illinois has pretty much no data privacy laws at all, with PIPA being one of the worst globally. Talking to the school, local and regional governance about data privacy concerns can help, but US citizens need to think bigger and amend the constitution with a right to data privacy. Surveillance Capitalism is already deeply entrenched in schools, showing an EULA is a start as it creates awareness, but misses the bigger problem. The tech companies selling to these schools will claim that a friendly teacher sometimes looks what the children are doing, as they should, and then collect every bit of data they can access. They will claim their big brother algorithms will help teachers support pupils with their individual problems, that they improve education and enable students, and yet society isn't becoming enlightened, it is turning into a dystopia of surveillance capitalism and gamified control.
There is something wrong at a fundamental level, the USA was the bastion of liberal philosophy, individualism and human rights, and yet it is now at the forefront of data enabled neo-authoritarianism.