Yep i agree. Bad things are best never done. Getting into a car wreck might not kill you but it's easiler to avoid it. Dirving 100 on the freeway won't make you crash all the time, but your chances are much higher
Driving or riding in a car, at any speed
, can result in a car wreck. Yet people get in cars all the time--would you say it's best for everyone to abandon cars completely because being in one increases the risk of a car wreck? My risk of being run over is much higher if I go near a road. Maybe I should never go near one. My chances of another person harming me is higher if I leave my house, so maybe I should stop doing that.
There's risk in the world. It's good to be aware of that and not take too many, but we can't avoid them all, so we always have to determine which risks are 'worth it' and which aren't. I used to mountain bike and now I do roller derby, which increase my risk of injury. But I do it anyway. Maybe this is a 'bad thing' that never should be done because it carries a risk of harm, but I don't care. It gives me enjoyment and I have weighed that this outweighs the risk for me, personally.
Eating cake and cookies now and then isn't going to break my leg or cause me to drop dead tomorrow. It's probably going to have negligible effect on my health overall. So why worry about it so much? Just like getting in a car, crossing the street, or playing roller derby, there might be some small risk attached to it, but it's not enough to make me consider it to be something so horrible it can never be done.
I can understand people who say that they won't allow themselves one cookie because they know themselves and they know that if they allow themselves one, they won't be able to stop and their entire diet will soon decline. I can't understand people who think that the actual act of eating a single cookie is harmful enough in and of itself to be worried about.