> Checking what the school is exposing the children to is part of parenting, if enough parents demand parental controls on the iPad you'd get that.

Yes, but often times enough parents DONT demand that.

Most parents think "ipads are a good thing children need to learn tech in order to have good jobs". Other parents think "ipads aren't good but if I complain I'll be that annoying parent that no one likes". Only a minority is vocal.