Fraction speak only belongs when talking about pizza or pie and even with that, no one eats 9/16ths of pizza.
You obviously don't live in my house. That's 8½ slices!
No wonder land surveyors use decimal feet.
I now know the decimal feet usage, but I have a conversion chart down to thirty-seconds in the front of my surveyor's journal that I used for a while. I run an medium old transit for fun and when my wife asks how far something is in her garden, she wants to know in feet and inches down to the 1/8 inch. So I have to convert something like 24.438 feet to 24' 5¼". The decimal feet are great when working elevations. Makes drop measurements for irrigation much easier. But I can still handle the fractions.
people who were in grade school in the 1970s like me were indoctrinated in it
In the 1970's I had a child in grade school. He didn't have to learn metric that I recall, although he wasn't in school very long.
Cheers -