> How will they be taught now? Most likely how they've always been taught. For most people, it's enough to know that a kilogram equates to roughly a liter of w

> How will they be taught now? Most likely how they've always been taught. For most people, it's enough to know that a kilogram equates to roughly a liter of water (H2O). It's not like the Ampere was ever actually equivalent to "two infinite wires 1m apart creating a certain force" either, since that's not a scenario repeatable in the real world. Teaching science involves lots and lots of simplification. Just like you learn that electrons don't really orbit around the nucleus when studying science in academia, you'll learn the proper definition of the kilogram.