It's still too low.

A plastic bag can be quite sturdy, it can be transparent so you can easily see what's inside, it's light, it folds well, is resistant to humidity, etc.

If you'd give a plastic bag to someone from the 18th century they'd cherish it.

We need to make it so the average person actually cares about buying a bag.

Something like €2 with a return value of €1. Or anything that makes you treat it like you'd treat, say, a good tennis ball. You wouldn't just throw those away willy-nilly.

And we need to ban the low grade ones completely.

>If you'd give a plastic bag to someone from the 18th century they'd cherish it.

Something very similar is happening in north korea.

http://koreabizwire.com/bottled-water-a-symbol-of-wealth-in-...

Yes well here in Spain bags are almost automatically handed out. And the cashier is personally offended if you say you don't need the bag.