Empty cans for pennies

L Is it possible for Brussels residents to bring their cans back to the store in return for a few cents, as is already the case for returnable glbad bottles? Despite the technical challenge involved in putting such a device into practice, the idea of ​​extending the principle to this type of container is attracting more and more people in Belgium. So much so that Brussels plans to try the experiment on a small scale, like what Wallonia announced last spring.