Nope, I don't respect my kids' privacy in this case. Not when the porn and other stuff is so readily available. I had more of your attitude with my daughters (who are now grown) but I am stricter with my son out of experience. Yes I trust them but at the same time, curiousity or peer pressure can sometimes prevail. My son and his cousin were googling 'fart' and 'butt' a couple years ago and ended up a bunch of explicit porn sites accidently. One of me nephews was 3 years older and came running to tell us, but not before the 3 boys had had an eyeful of bestiality. If I can shield them from some of this stuff, I will, and I don't feel regretful about it.

To me privacy is more related to their email etc but even then, if I thought they were into something really 'bad" I'd check that too. My employer gives us the same caveat. Don't use the school email for anything personal because they can and will check it from time to time.