Since the beginning, the majority of people didn't need covid-19 testing, or to line up to get their brain punctured through deep nose-swabbing. If you had vulnerable people in your home or worked in health care, you could test as a precaution to keep it safe for those vulnerables in your work and home. If you were sick enough to want to see a doctor, your doctor would test to determine what treatment you needed. Today, the majority don't need (or all of us don't need) the antibodies test since the antibodies tests don't work. If vaccinated people and those that had covid-19 can't reliably show antibodies in today's tests, then that one is worthless too