Because monks and nuns are monks! As the name implies, they are "monks". If they "live together", look at them: their hairstyles are the same as combs; Wear the same "clothes" (similar styles and colors); Play with a toy [Buddha beads]; Eat the same "recipe"; Do the same "work" [chanting, giving]; Even the "mantra" of speaking is the same [Amitabha! ] ... and so on, so many "similarities", it is easy to make people misunderstand that they are "family"! ..... But an interesting phenomenon is that where there is a monk temple, there must be a nun. For example, the monk temple is at the top of the mountain, the nun is on the mountainside or the monk temple is on the mountainside, and the nun is at the foot of the mountain. Ha ha! ! Don't believe it? Pay attention.