Fine, in that case, why is it a disadvantage for the males?
Now please don't tell me "it doesn't have to be a disadvantage for males, it might just be an advantage for females" !
> why is it a disadvantage for the males?
Who said it was? Just because males don't exhibit a behaviour doesn't mean it's necessarily a disadvantage.
> why is it a disadvantage for the males?
Who said it was? Just because males don't exhibit a behaviour doesn't mean it's necessarily an evolutionary disadvantage.