The problem with AI and poorly educated professionals is not the ability to diagnose and treat based on evidence-based medicine. The problem is that you have to know enough about medicine, and enough about real human people to know what kinds of questions to ask in the first place. If nothing else, there is a massive amount of information gained from a patient’s body language, mannerisms, behavior, and the physical exam itself that would be extremely hard to quantify in a meaningful way for someone without the background education and experience to come to any useful conclusions.
The current recommendation for colon cancer screening in those with a family history is to start routine colonoscopies at the age 10 years younger than the family member who was diagnosed. So if your Dad was 55 when he was diagnosed, you should start getting regular colonoscopies and screening at 45 (which is around the recommended age these days anyways).