My science education, at least in secondary school, was all in metric. I graduated from high school in 2003. The issue is that it isn't used here in everyday life, so it becomes "that weird thing from science [which I already disliked because of the math]".

I've done experiments switching to metric. It's not a good idea to rely on my GPS for speed limit information. My home thermostat apparently doesn't have a Celsius setting (and would confuse my wife if it did). It's difficult, but mostly possible to switch here...but what's the point? It's a lot of work for comparatively little benefit.

Metric has been taught in most American schools since the 70s. Nearly everyone here learned it at some point, but most people don't use it day to day, so they don't think in it.

yeah but its not like its pushed much outside of chemistry. my niece and nephew have learned less about it than I did over thirty years ago.

it simply is not a priority, it could be slowly slipped into prominence by emphasizing the measurements on everyday items instead of making those in small print

>yeah but its not like its pushed much outside of chemistry

Every science class I had in high school used metric. We also spent a fair amount of time going through it in elementary and middle school math classes.

My younger sister (by 20 years) spent a good deal of time on the metric system in her math classes.

I was taught metric and its merits over other systems in public school, but I'm sure it varies across the country.