There are legitimate reasons to prefer MS Office over iWork, but the argument "because this is the way it has always been done" is by far the worst one.
I'd say it's the younger people that are changing the world for the better and the old people like yourself doing things for the wrong reasons that are slowing them down. Look at the success of Slack. By far a better collaborative experience than anything MS has done with Office/Sharepoint/OneDrive/Lync.
We don't need to do things the old way, let's do them better.
I strongly disagree,the younger generation are making it so the older generation have to step back in and fix things.