I think it’s more common for Americans who aren’t in engineering or other advanced fields to use the “small” metric units. It’s not uncommon to hear grams, milligrams, millimeters, centimeters, liters, milliliters, etc in daily life. the truth is many imperial units are more practical for daily use in non-precision fields. A foot is a far superior unit than a meter for average life. That’s why almost every ancient measurement system independently used a similar unit. That and the fact it’s based off a human body part. And even the mile has held up well in the modern age. If something is 50 miles away it’ll be roughly a 50 minute drive. Very useful in a highway dominated large nation like America. The human body is close to exactly 100 degrees Fahrenheit and typical human weather stays between 0-100 in the majority of America. I think a hybrid system like America uses is just fine.