Been drinking raw milk for years. Also noticed that some lactose intolerant people are able to consume raw milk without any issues. People have been drinking raw milk from various mammals for eons. The risk associated with it is when dairy farmers don't use hygienic practices or make mistakes. When mass producing milk at scale, hygienic practices eats up time and money, so pasteurization provides a blanket solution to not having to waste time being too careful or worrying about making a hygienic mistake.