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?
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.