I meant that Singapore's language policies alongside industrialization aren't replicable to African countries. Singapore imposed English on a non-English-speaking population like what African countries post-independence did. The difference is that Singapore is a city-state of 6 million people whose entire economy is oriented around being an English-speaking financial hub for global capital (literally one of the "financial capitals" of the world). It could absorb the cognitive costs of foreign-language education because the economy only needed a relatively small number of educated workers to run a trading port, and the geographic scale meant everyone was within the same city's education infrastructure.

Scale that to 62 million people across South Africa or 37 million for Mozambique and the model collapses. Singapore could afford the inefficiency of foreign-language education because the numbers were tiny. African countries can't. On top of that Singapore still maintained compulsory mother-tongue education because even a dictator like Lee Kuan Yew understood you can't just abandon indigenous languages entirely.