I am a C艹 beginner from Python and C. I feel that the handling of trade-offs between performance and safety/explicitly is passed to programmers and not the lang

I am a C艹 beginner from Python and C. I feel that the handling of trade-offs between performance and safety/explicitly is passed to programmers and not the language itself, which made it difficult for beginners to capture what is the best practice. Choices may be good for experienced programmers, but they are not very friendly for beginners.