I ground an entire deer last year with my KA mixer and the grinder attachment. We added pork fat to get the right leanness. Cut into strips that barely fit the throat and as long as possible. Grinding is a low speed operation so the cooling fans are slower but it never got hot enough to stop us.
I ran the whole deer through the grinder twice to ensure a good grind and even mixing. Made for a store bought look and feel.
Every house I've lived in since I was born has been equipped with a KA stand mixer. Every holiday dinner we also break it out to whip cream for desert.
I also grind beef into burger since it is often cheaper to buy a roast than it is to buy ground meat and I know what's in a roast. We'll do 10lbs per batch this way and freeze it in one pound bags. My children know what cows look like, what a cow eats, where the roast comes from, and how that roast turns into burger, and how the burger cooks and tastes. Do your family a favor and be sure that they know how to make their food.