I disagree. I set up computers for people that have had no or little previous exposure to computers, and I set them up with Linux because it's easier for them to learn. Though I'm now moving to Debian, some of my first victims -- I meant users -- were first exposed to default Ubuntu and Xubuntu installs. You know what? They were able to email, browse the web, and play games with very little help from me.
For something like changing the default search engine, they would give me a call and I'd ssh/vnc into their machine and make the changes; they would watch and sometimes learn how to do it next time. Sometimes they wouldn't.
No longer can you assume that linux users have a clue. I feel it is much harder to use (and maintain) a Windows system. Unless you've had years of exposure to Windows, that is.