I live in Switzerland where everything you've mentioned has to be done thrice (3 official languages: French, German, Italian), yet I am firm in my belief that it should be maintained.

It's not about whether anybody cares about a specific language anywhere outside of a province. It's about maintaining a language as one of the elements of the culture and country's identity.

If only criterion to keep or strike a language as official one was whether it's spoken by a majority or a minority, then you'd be living in a dictatorship of the masses (where majority decides for everybody else).

Learning a second or a third language is not a burden. It's an opportunity. An opportunity to immerse one self into a different culture, different world view... It should be seen as gift to widen one's perspective and not a financial burden.

And using the money as an argument against this or that is a dangerous slippery slope. Because with the same argument one could argue against a lot of other things: "Why maintain a universal healthcare, it costs too much!", "What? Maintain free education? Who needs that, it costs too much!"... And so forth, and so forth.

You'd still expect manufacterers to put your language on packaging and for the government to communicate with you in it, I presume?

In benelux it is even more extreme, there must be German/Luxembourgish French and Flemish/Dutch. often there is no longer space for English :)

Anyway globalization need to be respectful of local identities. It is one of the tenets of a multicultural society. By insisting that population leave behind their local languages you are either fragmenting countries or cooking up a dangerous backlash.

Quebec is big is population and land size so saying 'nobody cares' is being disingenuous. It's an official language so can't be ignored.