People aren't the problem; it's the food industry that abuses antibiotics the most. When a pig gets ill, it's way cheaper to give her a dose of antibiotics instead of getting a vet.
"The effectiveness of synercid, a drug of last resort for the treatment of vancomycin-resistant infections, is threatened because of the use of virginiamycin as a growth promoter in chickens and pigs in the United States. Virginiamycin is chemically related to synercid, and bacteria resistant to the one drug also appear to be resistant to the other." [2]
[1] http://www.omafra.gov.on.ca/english/livestock/animalcare/amr...
[2] http://www.ucsusa.org/food_and_agriculture/our-failing-food-...
If people were willing to pay for antibiotic-free meat, then farmers would produce it. They would call the vet, and maybe destroy the pig rather than treat it with antibiotics.
By the way, you're naively presuming they're using antibiotics when the pig gets sick. Nope, they're using them prophylactically.
In the meantime, I will keep buying antibiotic-free meats whenever I can.
That's a strawman fallacy [1].
> If people were willing to pay for antibiotic-free meat, then farmers would produce it.
Seeing as most farming in the United States is done on megafarms owned by large corporations [2] that have historically shown to be (to put it mildly) lax on their focus on serving healthy and nutritious products to their customers [3], and that "farmers" in the traditional colloquial sense are now only 2% of the population [4], you'll hopefully understand if I say that your statement has little relevance in the United States in 2013.
[1] https://yourlogicalfallacyis.com/strawman
[2] http://thecabin.net/stories/091001/wor_0910010048.shtml
[3] http://en.wikipedia.org/wiki/Smithfield_Foods#Environmental_...