[znpy]

My dumb guess is that whereas Fortran was kinda designed with scientific computation as a first class use case and c/c++ let you do anything with memory (and make it easy to use inline assembly to access specific instructions), most other languages are designed as general purpose language without scientific (as in "high performance") computing as a main design objective.

And thus specialized data type, operators and syntax look like overhead. And thus language designers leave it out.