My kids are recent high school graduates. When they were in grade school, they learned MS Office. They easily picked up the newer stuff as it has come along, and at the same time, the schools have gotten a lot more flexible. It just wasn't a problem. Today they use Google Docs or whatever.

At my workplace, I see gradually declining use of any kind of word processing. Folks just edit in the e-mail or chat editor. One colleague makes video blogs.

Word processing seems to remain, largely for documents that will never be read, such as HR announcements and dissertations. ;-)

I've written lengthy documents in the chat editor, and have discovered to my great surprise and pleasure, that people actually read them. One thing that seems to be important is for people to be able to read things easily on their phones.