Some people say learning Latin makes you a better writer, smarter, etc. even if you're unlikely to directly use it. Dubious claims but it feels like FP can be like that.
Other unique French US cultures:
Haitian Creole
New England French were are Canadian migrants.
Missouri French
Muskrat French from Michigan
North Dakoka Metis French
It could have come to some from 40 years old but it was already here for many.
Still it's a French word. It is like going to Germany and learning an English word but calling it German.
(edit: spelling)
For a simple example, val newList list.map(function Call(_))
Instead of val1 = functionCall(1) valN = functionCall(N)