When using feet and inches, its fine to use precision of 1 inch as it’s much smaller unit than 0.1 m.
If one says that they are 5’11" (180.34 cm), they can be 5’10.5" (179.07 cm) to 5’11.5" (181.61 cm) tall. That’s 1.4% variance.
If using meters with one decimal place, and say they are 1.8 m (5’10.9"), they can be 175 cm (5’8.9") to 185 cm (6’0.8") tall. That’s 5.6% variance.
Thus it’s not really viable to use only one decimal place when using metres as unit, so in many languages it’s easier to just say the length in centimeters compared to use two deeimal places.
It’s interesting to meet someone else who also struggles with an overuse of parentheses and ellipses (I didn’t know what they were called, thanks for that!).
This is a complete shot in the dark, but do you also happen to be on the spectrum? (I have nothing to base this on expect my theory that overclarification could be more common among neurodivergent people)
Edit: ellipsis -> ellipses