People should try and do some work instead. Too much languages is a bad thing, a diffusion of good will and energy in too many directions.
It could also make it easier to innovate. Languages are absorbing features from each other all the time. It’s harder to mutate (pun intended) an existing language to express and idea than creating a new language that keeps those ideas front and center since it was built with those ideas in mind.
As an example, I quit doing C# dev after 13 years because I got tired of waiting for them to add features like immutable types, discriminated unions, null safety, and first class functions. Swift/Kotlin are newer languages and have all of those features. A few years ago I watched a Q & A session online with the creator of C# and he was answering the question of C# turning in to F# and his answer was that C# is an OO language at it’s core, you can’t change the fundamental basis of the language.