Sometimes people just don't think about the details, don't realize how much money you put into feed and medical care, don't think about shipping costs. They think "oh, my friend has as much as they want, I'd like some too. I sent them Cookies for Christmas, maybe they can send me one of their chickens!" I get that kind of thing all the time with crafts. People don't realize how many hours went into the production...
Last time someone inquired about raw milk, I told them all the ways I was willing to help them keep their own milk goats/sheep. (I don't even milk my sheep, and if I did, I don't have a large enough operation to cover the costs of a licence-able dairy parlor.)