I'll speak from the perspective of someone who doesn't have loads of land on which to shoot.
It's pretty much a blessing to see a single rabbit on any of my shoots, those that I do see are goners - whether they're mixied, up the pole, three quarter grown or still looking at suspended mobiles on thier rabbit prams. Apart from the mixied rabbits, they'll all go to good use - either I eat them or the dogs or ferrets do or the local butcher flogs them.
If I had many acres and a 'choice', then i'd go for the good'uns, but I haven't, so they're all fair game - same as most other honest people who only have a smallish shoot would say too.