This also explains why Americans tend to doubt the usefulness of learning cursive writing: it is feels terrible and is quite slow when using ball point pens, but smooth and fast with a fountain pen.
Honest question - What do you see about it as being useful? I was taught to write in cursive when I was younger but I honestly don’t feel like it has ever been all that useful (especially given that most of my communication and writing is done on a computer/smartphone).
Anyway back to the point, cursive - or "joined up writing" as we call it - is used by most people into adulthood even though nobody uses fountain pens past primary school because it is quicker than printing.