In grammar school I was taught the Palmer Method of Penmanship as a formal course, with a text book. Before that, in 3rd Grade, we could only write with pencils, though I already used cursive. During Palmer, we had to use fountain pens.
Ballpoint pens were strictly forbidden. In the 1950s, ballpoints were still a new technology that many banks and other agencies wouldn't accept. The ink took too long to dry, it smeared, and the pens skipped. Some banks rejected personal checks written with ball points. Their lobbies still had "dip pens" in inkwells for customer use when I got my first bank account.
So I learned to write with a fountain pen, and to this day, when I have to sign my name on some important formal document, I will bring my own fountain pen with me. My handwriting really does look different using anything but a fountain pen, not like my legal signature at all.
And when I continued to use a fountain pen into the 1980s & 90s, I got accused of being a trendy Yuppie, because they had taken up fountain pens for a short time, as a fashion statement. I suppose mimicking their parents or something.
Whatever the case, I still use a fountain pen, and I have absolutely lovely penmanship, in cursive, of which I'm very proud. In fact, I can hardly print or do anything else.