On 23/01/2025 09:16, Filip via Std-Proposals wrote:
> Maybe a stupid question but why wouldn’t the STL containers be marked
> with final if it is not encouraged to inherit from them?

Discourage doesn't mean prohibit. No classes in the Standard Library are
marked as `final`, and an implementation can't add it of its own initiative:

https://cplusplus.github.io/LWG/issue2514
https://eel.is/c++draft/derivation#4

(I'm unsure if this extends to things like std::bind's return type,
since by specification, it's unspecified.)

My 2 c,
--
Giuseppe D'Angelo