[Mark Henry]

I'm fully bilingual in standard and metric.
I spent a long time building cabinets and construction and in Canada it's still largely done in standard. A 5/8" sheet of plywood may be 15mm, but it is still a 4' X 8' sheet. With all sheet goods being standard Lw it's just easier to use the imperial system, but why we still have this in building is wholly due to our proximity to the USA.
I can build in metric but like someone said you have to think in metric.
Temperature is no brainer easier in celsius, O*C is freezing, 20 C (68*F) is almost room temp, 100*C is boiling.
Only reason I'm still bilingual in distance is because of my summer cars, but now my thought pattern is I convert KM into miles.

The biggest bad thing about the metric system I see is kids/young adults totally losing their ability to do fraction math. Kids today don't even know what you mean when you say "it's a quarter to nine".