I'm very confused, explain how this is not the case with C? I haven't written rust, but my impression is the benefit is more about deeper introspection of thin

I'm very confused, explain how this is not the case with C? I haven't written rust, but my impression is the benefit is more about deeper introspection of things like lifetime than basic typesafety, which already exists in C/C++ (and is likewise occasionally bypassed for convenience, so I wonder how often the same is done for Rust)