Because abandoning a universally-interoperable, so-simple-a-child-can-interface-with-it interface to what is otherwise a very hard-to-work-with type of system s

Because abandoning a universally-interoperable, so-simple-a-child-can-interface-with-it interface to what is otherwise a very hard-to-work-with type of system state is easier than fixing file descriptor exhaustion problems.