In Europe, the cap is attached to the bottle, so the choice to recycle both is made for you.
In the rest of world, you get the FREEDOM to do whatever you want hence more caps littering beaches.
Laura Trethewey
How the plastic bottle cap became a parable for the value of EU regulation
Supporters of deregulation want Europe to be more like the US. But that would serve only American interests, says Alberto Alemanno, a professor of EU law