The young people's meeting in Cambridge UK is on Friday evening. Lots of them go out socially afterwards to grab food and chat. I think that's great as one of the things younger people struggle with is how to fill Friday / Saturday evenings so they don't feel like they're just staying in.
Could you prepare a survey and ask a few of the younger people who do go to the meetings you go to to complete it? And the older folk who might have some good ideas. (Those 'old timers' a your meetings were the 'young people' once so they could have some great ideas for you as well).
I've never seen a combined AA / NA meeting before. Is it worth putting this thread on the 12-step recover threads as well to get some feedback from them?