Probably because I think the science on avoiding too many antibiotics in a population is pretty well settled. Too many antibiotics will lead to more antibiotic resistant bacterial outbreaks.
Yes and no. Realize most problem areas are hospitals and factory farms where antibiotics are everpresent. Allowing people to buy antibiotics when they feel it is appropriate is a far different animal and liable to do more good than harm. The usage will be diffuse and unlikely to lead to resistant strains.