I find that the more time I spend around computers, the more I actually want to hand write things. I've recently gotten into the habit of keeping notebooks for various things, I even wrote a letter by hand to someone (something I haven't done since I was a child). There's something so permanent about handwriting, compared to an ephemeral computer file. There's also the fact that notebooks don't run out of battery, or…
It's not just my grandparents. Their relatives also all had wretched handwriting. I've shown them to many people, and they can hardly make it out, either.
I don't think good penmanship was commonplace :-)