Cursive script is something everyone should learn simply because it is an age-old practice that anyone can do half decently if taught properly. However ugly, one's signature is one's own. I have a rather good hand when I sit down and write seriously, though I scribble hastily a lot these days. My mother won a penmanship contest in grade school — statewide, I believe — and she taught me how to write. The nuns simply reinforced what I already knew.
I think there will be greater and greater competition mounted against the educational establishment, and that you are simply going to find a good number of people who have actually been educated and not simply trained. Such people have an advantage.