Life is plenty worth living without this stuff. But I guess we can't really come to an agreement since you've just defined people like me as "pigs in cages".
Hey, you do you. There are a million reasons not to do something, but if the deciding factor is a low grade long term risk I do suggest a person take that risk and live their life.
Fitter, healthier and more productive
A pig
In a cage
On antibiotics
… by realizing there’s no way to zero risks and that trying to do so leads to a life perhaps not worth living
Who cares if a drink isn’t risk free or a joint makes your a little slower, live a little.