> I tried to convert my 25 year old brother as well, but he switched back to Windows after a month. Despite being the youngest, he hated learning a new system and preferred Windows.
I've found this myself. My Grandfather loves Windows 8, my mother absolutely hates it. My Grandfather loves his new Android phone, my mum hates Android and refuses to use anything other than her iPhone.
Younger people may be more "tech-savvy", but at least anecdotally for myself they are the ones who hate change the most. Perhaps it's because the older crowd have fewer preconceptions about how things are "supposed" to work?
Perhaps your sample of younger people are just short of time and have the applications they want working in the way they want?
In defence of 'younger people' generally I hand my X60 Thinkpad running Debian Wheezy with the default Gnome 3 desktop around sometimes in class. It does not take them long to work out how to access Firefox and a maths video on YouTube after suggesting they press the windows key. They generally find the trackpoint harder to deal with than the actual interface so I take a USB mouse in with me.