[mlyle]

There's all kinds of things we don't do because of social pressure and legal constraints (that are there, in general, because in aggregate they make sense).

I close my mouth when I chew because of social pressure.

Someone might choose not to pick their nose in public because of social pressure.

Someone else might put the toilet seat down because of social pressure.

The amount of time I spend changing lanes before a turn is because of social pressure.

And yet someone else may not take the last helping of a treat because of social pressure.