@xyhhx they could, though at that point you could make the argument "why don't we have a special variant of arrow functions that has arguments or is allowed to be a constructor" and then you end up with fifteen kinds of functions

at least in my head the distinction between "small babie function" and "big grownup function" is easy to keep in mind

@xyhhx arrow functions aren't actually the same as normal functions, they have some features turned off on purpose:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions

from what I understand they're basically there to facilitate basic code reuse and thunking, so the fewer complications you have, the more contexts you can use them in. for example, if you define an arrow function within a generator, calling yield in the arrow function will yield from the generator, which could be a thing that you want (and isn't a thing you could do from a normal function defined in a generator)