I'm sorry but maybe, just maybe the thought of "be exposed to imagery that really is not going to help them be well-adjusted in life, without any safeguards in place" is a tad protectionist. There are still people (including children) dying and fighting daily just to survive in this world, an "accidental" porn image won't strip your child her future. There's porn in this world, there's violence, if anything, exposure is necessary to actually become well-adjusted to reality.