I am very uncomfortable with the currently popular advice "Don't get this medical test because results might lead to more actions that weren't really needed."

An example is the PSA blood test (prostate specific antigen).  Medicare pays for it 100% once each year.  It can be added to any routine blood test, not needing a test for that alone.  My number comes back very low every time, which gives me peace of mind.  If the number ever comes back high, or rises significantly for consecutive years, then the question would be should I have surgery to get some flesh for lab testing, or perhaps start chemo or radiation.  This is the point where doctor and patient should take time to discuss what to do next, including doing nothing at all.

Don't tell me not to have a simple painless test merely because doctor or I might make a bad decision about what to do next.  There are zero side effects or bad consequences from the test itself, only the bad choices doctor or patient might make afterward.