I am at a bit of a loss as to why venison is not promoted and sold more. (Although Morrisons are now stocking it, albeit only vac packed diced meat)
Having talked to a number of friends it would seem that it ticks so many boxes, e.g.
It cannot be intensively farmed, so by it's very nature it's "welfare friendly"
It's low in fat and cholesterol
Culling deer would actually improve forest and woodland. (Deer have no natural predators, as old trees die in the forest, new saplings should grow to replace them, but the increase in the deer population means that many saplings of native trees are being eaten by deer, and therefore natural reforestation of native species is declining)
I realise that I may be putting my head above the parapet here, but hey ho!