Yeah basically everybody I know who's non-technical switched to Chrome when Google started advertising it on google.com (This was back when nontechnical users would start every search query by going to google.com). "Oh this says it's better and faster, let me download it". Google also paid shareware/freeware developers to bundle Chrome with their installers if you didn't uncheck some option in the "expert install" mode. Chrome would then launch and prompt the user to set it as the default browser. This is somewhat questionable, but this sort of developer usually pushes some sort of malware in their installers so I suppose Chrome was an improvement on that.