It doesn't matter how well you know the farmer: raw milk is going to contain pathogens. That's because a cow's udders are right next to her anus. Healthy cows can carry Salmonella and other deadly bacteria without showing any signs of disease. And just try telling the six children who lost kidney function that the truth about raw milk is "exaggerated claims of the dairy industry."
Raw milk consumption is also NOT a personal choice. When an outbreak occurs, and there have been six just this year, taxpayers are forced to spend tens, sometimes hundreds, of thousands of dollars to launch an investigation. People hospitalized with illnesses caused by raw milk cost thousands and in some cases millions of dollars. We all pay for that. Finally, someone with salmonellosis or listeriosis or an E. coli infection is contagious and can easily pass that infection on to others.
Do your research and don't listen to the raw milk people; it's quite obvious where their priorities lie. Raw milk farmers charge three times the going price for their defective product and they routinely look for ways to violate the law. Trusting someone like that is foolish. As far as the argument that "people have consumed raw milk for thousands of years": that's right. They also died by the thousands of infectious diseases caused by that raw milk. And until modern medicine, the average human lifespan was 35 years. Do you really want to go back to those times?