the compatibility table is not trivial (in particular the europlug is compatible with everithing except the big type L sockets) and while new houses might be to nicer standards, there are a lot of very old houses in italy (i lived in a house from ~1850) and many public spaces use the cheapest sockets they can find so you either get a small type L (accepts also europlugs) a simple schuko (accepts also europlugs and unhearthed small type L) or a big type L (accepts only big type L).
In Italy I have mostly seen (https://www.plugsocketmuseum.nl/Italian1.html) 1,2,4,5, schukos like 17a and when lucky schukos like 9 and 10; I have never seen most of the others.
In this regard, long live the "europlug" and the trend switching towards type F sockets.
But I was just lamenting the bulkiness of it in general.
Both plugs and sockets are very compact, which is a far cry from the emerging standard which is the shuko/europlug which takes twice the space. Almost all new houses are equipped with shuko sockets.
But the sockets here do not have the additional prong to avoid swapping the neutral, so they're effectively just a waste of space.
* at least, we have two sizes for it, a smaller one rated for 8A, and the newer for 16A which we commonly have today.