Not to sound like an ass but I will quote/paraphrase something I read on similar topic on theregister.co.uk this morning.
He said um what do you guys do all day on your computers that run Linux? Do you all just browse the web and do nothing else but pretend to be important with no other apps?
Do you all run 90% of your work in virtual machines where you run Windows anyway?
He went on saying he uses music production software and hardware and something called DAW. The free software is horrible and is no substitute or doesn't meet his needs.
Sorry LibreOffice, the gimp, and Killustrator are no substitutes for Word, Excel, Adobe Photoshop, or Adobe illustrator. No can-do. If your resume is misformatted because LibreOffice can't be bug to bug compatible with your tables it goes into the trash.
So the argument is moot as not everyone becomes a Unix system administrator when they grow up. Besides web browsing what can you do with Unix? No serving doesn't count either for mere mortals so don't give me that?