I think as a child I got viruses from one of the ads, you know, the ones would put on the side of the site. We had to call in a guy, to clean parents' computer. I felt really guilty and never touched those ads again.
So Google's and Meta's main business are ads. And recently I felt confused. Do people click on ads? Don't these ads feel phishy to them?
On purpose? I vaguely remember doing so once several years ago, but I don't remember what the ad was for.
On desktop I'm at no risk of accidentally clicking on ads because I have uBlock Origin, but on mobile, more specifically on the YouTube app, I'll occasionally accidentally tap an ad or "promoted" video.