Quill pens were replaced in the early to mid 19th century by dip pens with a manufactured metal nib. The much reduced cost compared to quills gave a huge boost to literacy.
Fountain pens were an older invention, but poor reliability and cost kept them out of common use before the early 20th century.
I doubt either progression was controversial. Basic penmanship is similar with all of these.
Ballpoint pens gained popularity around the 1960s. That was (and is) controversial -- ballpoint pens require much more pressure, so they are less comfortable for lengthy writing, and it's more difficult to write neatly.
Children in some countries are therefore still required to use fountain pens at school.
Fountain pens were an older invention, but poor reliability and cost kept them out of common use before the early 20th century.
I doubt either progression was controversial. Basic penmanship is similar with all of these.
Ballpoint pens gained popularity around the 1960s. That was (and is) controversial -- ballpoint pens require much more pressure, so they are less comfortable for lengthy writing, and it's more difficult to write neatly.
Children in some countries are therefore still required to use fountain pens at school.