[alex43578]

There’s also the fact that a huge portion of foreign immigrants to the US don’t and won’t learn English, but can still operate just fine (or even have the system cater to them - press 1 for Spanish).

Look at the uproar over requiring commercial drivers to be able to read road signs in English.

[pantalaimon]

The US also did annex large parts of what used to be Mexico in the 19th century, so you don't even technically have so be an immigrant to speak Spanish

[alex43578]

Unless you're 126 years old, that excuse doesn't really hold up. Plenty of immigrants came from Italy, Poland, and Russia more recently than your mentioned time, but you don't hear Press 3 for Italian too often.

[RupertSalt]

Along Interstate 5 in 1980s-90s Southern California, there were large signs, black-on-white, which showed a pictogram of a family running.

The English text above read "WATCH FOR PEOPLE CROSSING ROAD"

The Spanish text below read "PROHIBIDO"