Now approaching the age where the thought of having a family and kids is on my mind more and more, I always wonder how I will approach this problem. I can't think I would do it any differently than you. For young children sure, throw up DNS filtering at the router level and the kiddos' will be none the wiser. But if my future kid ever turns out like me, that will probably only work until 7 or 8 (when I figured out how routers worked), at that point I would think it has to be an honest conversation about all the crap on the internet. Even when I was a kid I knew when the adults were feeding me a load of crap.