I find Go is quite similar to C, and C also lacks all of these features. It's rare to see C code using some library for generic containers. Most developers roll their own, as needed.

In practice, bugs and safety aside, this tends to work swimmingly. Look at Redis, or git, or postgresql, or the many other projects getting by just fine without generics.

While I agree, and believe generics offer unparalleled power, they often aren't remotely necessary. If anything, their presence creates a tendency to over-use them, resulting in even greater complexity.