My DS16 wants to go with two of his friends and some girls to oxford for halloween. I asked him what hell be doing there and he said he has no plans yet but they'll try to get into some club or some house party. He said he doesn't know what time hell be back but be plans on returning by train and it will be quite late. AIBU to not let him do this? I'm not stupid and I know that a group of 16 year olds will be drinking given the chance but why is he trying to go oxford without any specific plans yet?