[steveklabnik]

This has been suggested and tried over the years, even with the same name: https://crates.io/crates/stdx

In practice, they don’t gain adoption. The current situation is just better, or at least, many more people seem to think that in practice.

[necovek]

OP does advocate for support by Rust Foundation and possibly inclusion into standard Rust distribution: that would change adoption by default.

Whether that's really what a community wants is a different topic. Python ecosystem and its stdlib history is a good way to look at it (eg. urllib vs requests etc).