Also worth noting that the internet has massively accelerated the importance of English already.
As an ESL speaker who grew up on the internet, Norwegian was more or less useless to me outside school and family. Most of my time was spent on the internet, reading and writing lots of English. Norwegian wikipedia is pretty much useless unless you don't know English. That's still true today for the vast majority of articles, but back then was universally the case.
There were Norwegian forums, but with a population of just 4 million and change at the time, they were never as interesting or active as international/American forums and IRC channels.
In fact I'd say Norwegian is only my native language in spoken form, whereas English feels more natural to me to write and read. Doesn't help that Norwegian has two very divergent written forms, either.
I even write my private notes in English, even though I will be the only one reading them.