Yet another good reason for schools to switch anyway. Google keeps getting sued over its data collection on schoolkids, and students have always been worth more to Google than Google has been to them.
https://futurism.com/future-society/google-search-engine-access-schools-ban-ai
Just one example:
"... secretly gather information about school age children"
"The tech giant collects not only traditional education records but thousands of data points that span a child’s life, and 'neither students nor their parents have agreed to this arrangement"
https://news.bloomberglaw.com/litigation/google-hit-with-privacy-suit-over-data-collection-on-school-kids