My nearly 16 year old daughter is going to an apartment on Friday night with all her friends. She is very mature and responsible and has never gave me any reason to doubt this. However, she wants to stay overnight as all of her friends are but I won't allow her to as there is no adult supervision and you never know what can happen at these types of things. She assured me that if anything is to happen she will leave immediately and get a taxi home. She is upset by this as all her friends are staying and it's her friends birthday but I won't let her. She says that she hasn't gave me any reason not to trust that she will make sure she is always safe so should I let her stay overnight or not?