The country broadly has what’s called a monolingual language ideology. English is prioritized above others. Multilingualism just isn’t viewed as a skill. And thus there’s no large pool of L2 speakers with which to interact regularly enough to learn and maintain an L2. I mean, they certainly exist, but the landscape is quite different from somewhere like Belgium or South Africa or, idk, most countries. Really anywhere where there’s like a home/cultural language, a market language (maybe a pidgin), and an official state language.