That's a continental average. Rates varied (June 2022) from nearly 72% in Rwanda to near zero in neighboring Burundi. You are unfortunately parroting a bad/malicious over-generalization.
Sweden tried to go the "herd immunity" route, realize they were about to take it hard on the nose, and changed course to match their European neighbors who were doing better. What do you think happened?
I've worked in tons of different ecosystems. You still need batteries in other platforms. I'm in a .NET web project right now where no only are the core libraries out of date, and one gone out of Microsoft support, but is filled with libraries such as Newtonsoft's JSON library.
BTW, learns at least 2-3 languages in your career. This will give you a perspective many lack.