Because of a lack of cursive? Cursive is silly and useless.
Cursive kind of reminds me of old English. It's nice for people to be able to read it, but I certainly don't think it's a necessary skill (or for that matter, even necessarily useful) that everyone should learn, by any means.
This year's education, sponsored by Apple.
(Side note: I'm a huge fan of getting newer and better technology into the hands of children earlier. I am not a fan of this, though, any more than I was a fan of my college's software development program practically being "sponsored" by Microsoft and only teaching MS programming languages.)
Isn't cursive a very rigid set of letters, the same way block printing is? For most people, I wouldn't think signatures would fall under either category, especially since for simplicity's sake, most signatures turn into essentially "letter, scribble, wiggle, hint of a letter". That's how mine is, at least. With the first letter being optional, lol.
None. 
We're busy killing those off by teaching crap like this: Gatsby without greatness - Roger Ebert's Journal
I've read a surprisingly large number of articles about people who decided to go with standing desks for their day jobs that involve sitting (or in their case, standing) at a computer all day long.
So... what is it?
Instead, they should teach people how to properly write Facebook posts/comments and non-vitriolic comments on news stories.
It's all in the delay. If we somehow invent teleporters that can fit in your mailbox and allow you to instantly mail something to anyone (and allow you to check your mail from anywhere) then you might see a small resurgence in that, but I'd still be surprised simply because of the waste involved (envelope, paper, etc).
Seriously? People still use fax, too?