Sorry, but I disagree with that suggestion. What if they can't do it? (not unlikely for someone who has never done it) You can't keep meat chickens for a long time. Cornish Cross in particular are freaks that can't survive naturally and must be culled when young. Doing otherwise would be cruel.My suggestion would be to get a few meat chickens, don't treat them as pets, and then butcher them at around 8-10 weeks. You would quickly find out if processing your own birds is something you can do. I think it would be a lot harder to butcher your favorite hen after you have been feeding her for years and know each and every personality of the girls in your flock.
Many of us do not have farm friends that are used to culling chickens, nor do we have local processing centers. The latter have become highly centralized to serve Tyson/etc.
I paid for and attended a class on chicken harvesting some years ago. Paid $20 (I think) and they provided the chicken, demonstrated the process and coached us through doing one ourselves. I was able to get through it, but it was hard for me even though I didn't know the chicken. It is harder with one you've grown attached to, so I've stopped naming mine.
If you are new to chicken harvesting, I strongly recommend you get someone to help you get through one first. Then consider if you can/will do it again.
I don't want to tell other people how they must raise their small animals. I'll just say that the way I was taught was that if you decide to raise animals, you needed to be responsible enough to ensure they had a good life until they were harvested, and you had to have the ability to cull a sick or injured animal that could not be healed to prevent unnecessary suffering of the animal. Those lessons have served me well for over 50 years of raising small animals.
I live on a lake here in northern Minnesota year-round. Most of my "neighbors" are summer only residents. One spring, I noticed one of my neighbor's yards was covered with a heavy blanket of fall leaves. Those leaves would have killed all his grass before he moved to the lake for the summer. I have a large riding mower, with grass collection bins, so I went over there and just mowed up those leaves for him. Not a big deal for me on my riding mower. I used the collection bins on the mower to remove all those leaves, brought them back to my house, and dumped them in my compost. Saved his lawn.
I used to get much better deals on chicken feed prior to the COVID-19 pandemic. Since then, the prices have gone up a lot on feed and I don't see nearly as many sales on chicken feed as in the past. I look for anyway to cut my costs. I'd be happy to hear any tips or suggestions on how others cut their feed costs. Thanks.