When I log in to Blend I can no longer see anything related to my son, he is not linked any longer. No clue how this just happened overnight. Through his login and settings can he delete people as Observers?
I do not believe it is possible for a student to remove/delete their parent has an observer but I work in higher education and not K-12. I would recommend that your contact your studnet's teacher and ask them to look into this or to work with their school's IT/Canvas team.
