Several of my colleagues (we're high school teachers with young children) have received info about this from their kids' teachers, for parents to enroll. I think one of them is going to be using it with his high school kids.
I often have issues with using technology because many of my students have access, but some don't. As a teacher, I have to be aware of this discrepancy and make allowances to compensate for it. I would hope, as ColinsMum noted, that the teacher would think of giving parents access. In all honesty, I would think that many parents of kids that age would like to get the texts as well, even IF their kids were also getting the text. I'd email the teacher and ask about getting parent access.
