Not really knowing how to use a computer is deemed acceptable if you’re twenty-five or over. It’s something that some people are even perversely proud of, but the prevailing wisdom is that all under eighteens are technical wizards, and this is simply not true. They can use some software, particularly web-apps. They know how to use Facebook and Twitter. They can use YouTube and Pinterest. They even know how to use Word and PowerPoint and Excel. Ask them to reinstall an operating system and they’re lost. Ask them to upgrade their hard-drive or their RAM and they break out in a cold sweat. Ask them what https means and why it is important and they’ll look at you as if you’re speaking Klingon.
I don’t know about installing Linux to force someone into learning Perl, but general computer-literacy may be even worse today than it was 10 years ago.