All Japanese people learn English at school; few learn Chinese as you can verify by reading about the Japanese school system from various sources including Wikipedia.
Similarly in China, English is the only mandatory foreign language taught at school.
Frequently, Chinese or Japanese. For example companies in these countries employ translators. Are you suggesting they rely on primary school-level English to negotiate?
You claimed, without a source other than wikipedia, that everyone in Japan learns English in school. I see this [0] on wikipedia which says "a select number of public primary schools ... have mandatory English classes"
