We have a question on your collateral cousin's site: Travel. It was voted off-topic but still has interest. Perhaps you can entertain it here?

A traveller was on walk-about in Luxembourg and observed that there is an apparent uniformity with respect to the way rubbish bins are left outside for collection. It is in a purpose built pit roughly 55 cm/25 inches deep. The photo is uploaded here as a matter of convenience...

We understand that there is practical merit to this arrangement...

Wind is less likely to knock them over;

Feral animals are less likely to knock them over;

They are less likely to fall upon and injure a toddler;

...but these reasons are speculation and not nailed down with the precision that would satisfy an interested person. There has been other speculation that the placement of rubbish bins is a regulated activity and a different line of thought that it may be expensive (either to install or to place the bins there for collection). Part of a building code for Luxembourg? I have suggested that there might be a cultural influence like "monkey see monkey do".

Have any of YOU contemplated having this type of rubbish bin 'repository'? What do you call it so as to help Googlers?

Question: is there something peculiar to Luxembourg to cause rubbish bins to be configured this way? Or more generally, are there other locales where one can see the same uniformity?