Well, I'll share some of my recent experience, and perhaps you can tell your dad my perceptions.
I bought 25 Cornish Cross chicks at the feed store the 2nd week in June. I butchered at 5 and 6 weeks. I figured out my cost -- $1.32 a lb for dressed out, cut up chicken with giblets but no skin. That price is about comparable to the sale price on cut up chicken, but that will be the mass market stuff that is full of hormones, antibiotics and "injected with up to 15% of a solution of ..." My price was actually a lot cheaper than comparable premium farm raised chicken from a high end butcher or grocery store.
It was much EASIER than I thought it would be. As far as the plucking goes, I didn't! We don't eat the skin anyway, so I just skinned them. Simple and quick, I could completely process a bird in about 15 minutes from live bird to cut up and soaking in salted ice water. After I let them soak for a couple of hours in a couple of changes of water, I put them in the freezer. The gutting was much LESS difficult than I thought, and no much odor. I just withheld food starting at dark the night before, just let them have clean water, and there wasn't much at all in the digestive tract.
The taste was out of this world, no comparison at all to the nasty store stuff. Fresh, tender, moist, succulent, and vibrant. Just night and day, like the difference between some kind of nasty super cheap cardboard frozen grocery store pizza and a really premium homemade one from scratch with ultra high quality ingredients.
The whole process was interesting, easy peasy, and I'm psyched to raise my own from now on. The ONLY hard thing about it was the heat -- we're having the same heatwave here in Michigan that others are having, but not quite as intensely hot. The Cornish Cross definitely don't like the heat. I'm going to order 50 for late August delivery, so that they mature in the cooler fall weather of October. If I did it again in the spring, which I'm pretty sure I will, I'd get them about mid April so they could go out in early/mid May, and mature by mid June before our major heat hits.
Sorry, Dad, it may not be the answer you want to hear, but I think this would be an EXCELLENT project for a young person to undertake -- and, I bet if you tasted the end result, you'd never want to go back to the nasty grocery store stuff either.