It's mostly useless in Finland, and all of the Nordic countries employ people who only converse in English, although Swedish is an advantage in Sweden, not so much in all Nordic countries.
Even the people for mandatory Swedish in Finland do NOT talk Swedish, they talk finlandsvensk which is a mix of Finnish slang words and the actual Swedish language.
The only reason Swedish is a part of the education in Finland is that the upper class of people talked Swedish when Finland was originally created.
It's a relic of times when we needed anything to differentiate us from Russia, nothing more. It has run its course of usefulness in Finland.
It is not needed as a mandatory subject at all. English, Chinese and Spanish are way better international languages to make a mandatory subject.