So true. Dad started out that way but by the late 50's meat plants supplied plucked chickens, beef and pork sides. The meat cutters took over from there making all the cuts in-store.
I remember my Dad's last working night (1972) when I went to pick him up. He showed me all the boxes the meat was coming in now, no more hanging sides in the walk-in freezer, just boxes. He said to me, "I'm getting out just in time, they've taken the art away".
In the olden days, the meat counter at the grocery store had a diagram of the beef with the cuts all marked out, head to rump. I don't see that in modern grocery stores, for the most part.