Eyeballing Google Image Search? What an absolutely absurd way of figuring out what Scandinavia is. First of all, "every image" isn't even close to true, as many of them clearly highlight Finland (and Iceland) in different colors and many of them include non-Scandinavian countries for context (like Poland and the Baltics). If you actually click on any of those links, they don't "say he's wrong". From one of the first result's webpage (Wikipedia):
> The term Scandinavia always includes the mainlands of the three kingdoms of Denmark, Norway, and Sweden. Norwegian dependencies, including Svalbard and Jan Mayen, are usually not seen as a part of Scandinavia, nor is Danish Greenland. However, the Danish Faroe Islands are sometimes included, as sometimes are Iceland and Finland
Finnish isn't even remotely related to the Scandinavian languages. If you're going to be needlessly pedantic and contrarian, at least put a little more effort in it than glancing at Google Images.
blah blah blah.
Finnish is related to Scandinavian languages because it is a Scandinavian language. There are even similar words like appelsiini vs apelsin for Orange, in Finnish/Swedish respectively.
That's... not how languages are grouped together. Russian has the word "apelsin", meaning the same thing - is it a Scandinavian language also?
Finland is associated with Scandinavia by virtue of being dominated by actual Scandinavian countries (notably, Sweden) for so long, which influenced the culture. But it's not Scandinavian per se, any more so than, say, Georgia is Eastern Slavic. Ditto the language - influenced, yes; belonging to the same group, not at all.