1) It's a lot cheaper to have antibiotics properly regulated and conservatively prescribed. That's how Norway still manages to do just fine with Penicillin in majority of cases. Voila, no need for phages.
4) USSR jumped onto antibiotics as soon as they were available, and hasn't really looked back.
1) Can you get the industrialized farm lobbies on board with this? How about 3rd world rural clinics? How about 3rd world farmers using powerful antibiotics of last resort to make animals get a little bigger?
Successfully regulating antibiotics is a worldwide effort. I'm not confident we'll ever be more than moderately successful at that.
If that was easy that would obviously been done by now. Doesn't mean the alternatives (like phage libraries in "3rd world rural clinics") are more realistic.
Proper antibiotics circulation is a policy problem; phage therapy is scientific, technological and policy problem.
4) USSR jumped onto antibiotics as soon as they were available, and hasn't really looked back.