Earlier quoted context omitted.
You can’t block all of it all of the time, and children (some of the most vulnerable) especially can’t.
True, and this is why you shouldn’t just hand your kid an iPad and peace out. I’m all for technology and video games for my kids, but I’m vigilant to keep my kids’ eyes away from ads. As a result, my kids aren’t foaming at the mouth for the latest and greatest toys and games which was my experience as a child.
For instance I am very comfortable letting my kids play video games. I play a lot myself, I can make good judgments about what is appropriate for them, what is an appropriate amount of time to play, what is good/bad behavior when playing, what systems are a good choice or if online access (if any) is appropriate. I barely need to think about these things, but for some people this is an incredibly time-consuming, intimidating task.