A lot of people with chronic conditions are on constant small dose antibiotics. I have a daughter that contracts pneumonia from every little common cold. She’s on small-dose antibiotics every day now with good results.
Her doctors say a very good reason to keep the use of antibiotics down in the general population is just because those people would be extra vulnerable to resistant bacteria. Doctors here have effectively stopped prescribing antibiotics for things they prescribed it for almost always just a few years ago, such as regular tonsillitis. That’s the sort of thing that helps. Obviously a total ban on antibiotics in healthy livestock that the EU adopted is even more important. I wish we could see that in China/India soon.