Haha I was wondering if this part was unclear but assumed it was obvious from context, that the cart opener can be removed from the coin slit. Imagine leaving your keyring on your cart... yikes!

The reason my wife (I have coins) uses them is that it's just easier to access. No need to go through your coins (if you have any), you just put it in.

> Imagine leaving your keyring on your cart... yikes!

While you're shopping? That's not a big deal.

When you return the cart? How are you driving home without your keys?

I guess Europeans might be more likely to not take a car to the grocery store, but I would prefer to use a basket over a cart while shopping in that case... I'll know when I'm done shopping when the basket hits my limit of how much to hand carry.

Good point. Think of the device as a lock pick for Aldi carts you can remove it and don't need to leave your keychain.

It's not a lock pick for the carts, you need to leave it in.

There are some that you don't have to leave in the slot - they got quite widespread a few years back https://www.printables.com/model/430247-shopping-cart-coin-s...

The "coin" part is usually detachable, so no need to leave the whole set of keys with the cart during shopping.

Yes, but they do cost money and effort to get. A 25-50 eurocent coin is probably equivalent.

The only thing that's useful about those things is that it's easier to get them faster.

Where I live it is always 1€ coins.

But leaving it on is a good way to avoid forgetting to it.

There’s ones with a “notch” in the coin part. So you unlock the cart, twist it, pull it out.