...FEMALE CAN PASS X-LINKED TRAITS TO? explain why a human male never passes X-linked traits to any of his pffspring while a female can pass X-linked traits to both male and female offspring?
Your question is flawed, human males CAN pass on x-linked traits to his female offspring just not his male offspring.
This is because in order to make a male child the male must pass on his Y chromosome not his X chromosome. As such no X linked traits can be passed on because no X chromosome has been passed on.