Dit trof ik net aan op mijn Facebook pagina:
You don't visit a web site, your browser communicates with a web server and requests and receives instructions how to render a 'page'.
I like to turn it around: a web page visits you.
You invite a web page to come over to your computer to tell you something you're interested in.
The first thing a web page does after it arrives is to invite friends.
It doesn't ask you if you're OK with that, it just does is.
Some of those friends, such as style sheets and some images are good company, others are noisy characters who do everything they can to distract your attention from the original web page, and they also try to find out as much about you as they can while they're there.
And occasionally they even damage things in youre house (malware).
If you put it like that it is obvious that you can deny those noisy characters access to your house, you didn't ask for them and you didn't agree to their presence.
Someone who claims the right to bring anyone 'they' like to *your* house is an arrogant bastard who should be taught some basis manners.