Sorry to say this but my adult son a father himself , says “free” instead of three - his late father did too.
I have told him ( not in company) that I stopped saying free for three when I was about 3. My mother was a serious CORRECTOR on all matters related to speech - even mid flow, maybe I should have corrected him earlier it’s just that I have always believed that it’s what you say that matters. He went on to achieve highly in education and has a successful career