There's also the issue of support and being smart about it.
e.g. If I install an OS or certain software, I never make it use my native language, I always choose English. Why?
Because there are only ~5 million people in the world that speaks my native language,
10% of those people are using computers beyond mere facebooking etc,
probably 10% of those use the same stuff as me
10% of those people are probably having the same issue as me,
10% of those are able to fix it,
10% of those people are willing to make an online guide to share the solution,
10% of those actually make the guide.
And this is me being generous with the percentages.
So my chances of finding the solution is better when I use English.
The same applies to my OS, that's why I use Ubuntu. It might not be 1337 af but I know my limitations and plan accordingly. A computer is a tool, I want it working without excess bullshit.