I'm not sure if that's sarcasm I detect in your post. I'll go with 'no' and play this straight this time. Ignore me if I'm wrong.
The Baby Boomer generation aren't to blame for not wanting to learn new things. I think the problem is with a vocal minority of users who don't want the hassle of having to re-earn or adapt. These people are across all generations for anything from laziness to mild tech-phobia. These people are the same sorts who will moan about their TiVo interfaces being updates, remote controls being different between brands and SmartTVs having too many options. For some, the computer is a necessary evil and they just want it as easy as possible (i.e. the same as it was). Once some of them realise how easy Win 8 can be to operate they may actually change their stance.
As for the Mac comment, Macintosh OS underwent a major change with the release of OS X. Some old-school mac users really struggled with the change although, admittedly, it has remained largely the same since. Much like Apple's iOS system.
The question you pose: 'Why aren't people using old-style tech if they don't wanna change?' (paraphrased) isn't irrelevant to this debate at all. If people shy away from Win 8 because they don't want to change then they could:
a) miss out on something that might actually suit them better
b) Hold back further innovations or changes
All I'd ask is that people give something new a go before making their minds up. So far I've seen nothing but preemptive dismissal from the 'What's wrong with Win7?' crowd so far. I think as a tech-loving community we could be a little more open minded.
Anyway - I can't hang about for 8 hours debating this. I have work to do