I'm not a Windows basher and not much of an Linux evangelist. However, when you see a situation where you know Linux would be a much better solution than Windows, I want to at least make the suggestion.
In my grandson's case, the computer I'm preparing is a 2.4 GHz Celeron laptop with a 20 gig hard drive and 256 megs of RAM. It came a few years ago with Windows XP. With just 256 megs of RAM, it's not up to good performance with XP. The other problem was that due to being used by kids, it was infested with trojans, worms, and a virus that slowed the computer down to the point of being unusable. I got rid of the malware and performance improved, but having even lightweight antivirus and antimalware running in the background slows down the computer some, a situation it can ill afford.
To me, the obvious solution was to put VectorLinux on it. VL would run better with more than 256 megs, but it runs much better than Windows does. They may add more RAM, but even if they don't, Linux performs better than Windows. Not needing AV and antimalware software running all the time gets rid of the performance hit the protective software causes in Windows. A full installation of VL 6 Standard plus additional software takes up less drive space that XP requires. That makes it easier to live with the small hard drive.
My grandson uses the computer mainly for Web browsing, in particular playing games hosted on Web sites for kids. He may use AbiWord for homework, isn't really into e-mail at this time, and doesn't edit photos. He should not have to deal with managing the operating system much.
It's certainly no harder to browse the Web under Linux than under Windows--easier, actually, because you don't have to worry so much about drive-by infections and clicks that unintentionally install malware.
I think there are millions of people in this same situation who would have everything to gain and nothing to lose by adopting Linux. I think one reason they don't is they have no idea what Linux is like. "What does it look like? Can I do the things I do now under Windows? Is it hard to use? Will my Internet connection work?" I wish there were more opportunities to show Linux in action. We need a billionaire to fund TV commercials that simply show people doing everyday things with Linux.