No, not at all. I'm going with (hopefully) good parenting and crossing my fingers on that one. ;) It's preventing the "accidentally wandering into questionable content" that I'm interested in, in search results, etc.
I'm not so much even worried about protecting her from the "questionable content" because I think that's something she needs to learn to deal with (though we do of course have rules about what is and isn't allowed). I just don't want her stumbling across it on a tablet in her bedroom, where we won't notice and can't offer guidance or discussion.
We have a computer in the living room that she uses for internet access and we don't have any filtering software, etc. on it. It's just out in the open, so generally supervised.