Or do we just ignore this and not let server owners and plugin developers use Minecraft to its fullest.
For functionality, the game offers just enough color options to the players.
I gussed that mojang added hex support only for json text.
It provides the player with a cross-platform such as PC and Android devices.
Switching the keyboard language to US English will make it simpler for you to find the symbol.
Why this is done is unknown, as a colored texture with no color would achieve the exact same visual outcome and allow for further customizability with resource packs.