I wouldn't mind I - I've often made reference to it - I suspect (pretty well know) that we err on the side of older age groups. If so, I this is probably due to two main factors - the first being that younger people have busier social/family/work lives. The second and probably more important one is that younger people favour instagram, facebook, snapchat etc. - fast, on the move social media. Forums like this one are much slower paced and tend to work better for debates, discussions and detailed in-depth exploration of topics. Many older people will remember the internet 'discussion boards' which used to exist in the days when Facebook didn't and will be familiar with this kind of format. In fact, I've occasionally heard members refer the this forum as a 'board'.
Forums like this don't work so well with 'on the go' smart phone media, however 'smart-phone friendly' the interface is. Plus - many people regard 'forums' as a special interest place where you drop in to ask a question or solve a problem (usually a techie one') like particular questions to do with software.
If you search for food forums with Google you will find very few - I think that probably says it all. Just my thoughts - this is part of a wider discussion, of course!
Have a good one. 
