Lung cancer is predominantly an illness seen in smokers or former smokers. There is an increasing number of patients with lung cancer, who have never smoked. Ever.
The huge stigma of lung cancer remains in this present day and age. People still say in hushed accusatory tones… “he was a smoker”, “she really should have stopped smoking”, etc.
The main issue being that we cannot change the past, but can fix the present and modify the future. Stop smoking. Believe in yourself. Focus on treatment. Get on with life.