Should I let my cat stay outside at night?

i don't see any problem with letting her out all night now ive got a 6 month old kitten who has spent a few nights out side due to the fact that she simply wont come in she will come up to the door when its closed and run away when i open it to let her back in (shes taking the piss out of me lol) she loves being outside at night chasing all the moths flying around although i do have an older cat outside with her to keep her company and show her the ropes