I think it strongly depends on the country. In many European countries (especially in northern Europe: Denmark, the Netherlands, etc.) compulsory English is organized at a very high level in regular schools. As a result, graduates of schools actually speak English at the level of C1. In other countries, for example, those that were part of the USSR, foreign language teaching in public schools is indeed at a very low level and practically useless. Although there are state specialized schools with an in-depth study of foreign languages, the result is quite high in them.

Vast majority of countries leave people no choice but to enroll to language school to learn foreign languages

In the case of the United States, our foreign language education leaves much to be desired.