Tasers and shooting lightning from your fingertips aren’t even close to the same thing
But the point remains that, yes, society can do a thing but the power of wizards in most fantasy stories largely comes from personal, internal, strength rather than the ability to leverage a vast web of engineers, laborers and infrastructure in the outside world
If someone dropped you in a remote area you wouldn’t just whip up a quick dishwasher to get a job done. The parallel between technology and magic as seen in most fantasy stories is weak at best
It’s worth noting that the lack of second language proficiency isn’t a result of laziness or ignorance
In Europe, most people are a short train ride from another country. There is also a lot of cultural exchange between countries within Europe.
Most Americans are multiple days of driving from the nearest non English speaking country, and that’s just to arrive in an area of Mexico where the people they will interact with overwhelmingly speak English.
In that context, there is little utility for most people in learning a second language. It’s also very difficult to achieve true proficiency when you are so rarely exposed to native speakers of a language.