None of us are actually saying he is wrong.
Glad to hear it.
Just that he is living in cloud cuckoo land thinking that even a small minority of xp users are going to upgrade without something happening. And even if something major happens there will still be a load that won't change because they can't due to required software usage.
I'm merely trying to encourage people not to learn the hard way. And as for "required software usage", for the majority of people it'll be irrelevant and stuff will run on 7/8 that ran on XP.... and most home users do little more than browse the web, send emails, write letters and play a few games..... none of which needs XP.
Its certainly inexcusable however for businesses of any size not to migrate (unless they're paying Microsoft for ongoing support of course).... of course there are edge cases, primarily with embedded systems such as ATMs and machinery control... but one would hope those systems have no ability to access the internet and are on locked down isolated networks anyway !