Hi Alexandra, The majority of English language classes around the world are taught by non native English teachers, e.g. in Russia the majority teaching English are Russian. In China the majority teaching English are Chinese. Most countries want fluent English speakers ("native is also use") because many of the local English teachers don't have fluent English skills or American or British dialect...
Ages for people teaching English abroad varies country by country, some are set by the country for a work visa, some are cultural norms. Here's an article to give some insight but there are people 18 to 88 teaching English in different countries.
Hi Alexandra, The majority of English language classes around the world are taught by non native English teachers, e.g. in Russia the majority teaching English are Russian. In China the majority teaching English are Chinese. Most countries want fluent English speakers ("native is also use") because many of the local English teachers don't have fluent English skills or American or British dialect...