It's a pity that people didn't know the perils of smoking long ago, it might have persuaded some to not start, or those long time smokers to give up.
I was the only one in the family to not smoke, so the family home used to be full of fug, though eventually they got the message. My o/h gave up on doctors orders, but it didn't save him, though his was a different type of cancer. I hope that anyone who is unwell now gets better soon.