Wait, lets take things into perspective as you're clearly wearing some rose-tinted lenses; legalization has brought some negative aspects to CO since legalization; having been there prior to Amendment 64, it has changed the state a lot, and not all for the best.
Homelessness has risen dramatically, which leads to petty crime; try taking the bus or other public transport in Denver if you want to test this hypothesis. Try to go to the park after sunset, or around the outskirts of LoDo after dark.
Secondly, housing shortages have driven home prices/rents sky high, pricing out even locals from their areas and having to commute into town; Boulder is a good example, but Denver is catching up fast. Traffic SUCKS bad if you're going anywhere from 10-9pm, and the drivers are fucking awful; I come from a place where it hardly rains, but lived in Europe for a while, and I sear its impossible to believe how bad people are at driving in the rain/snow in CO these days, there are so many accidents now.
Lastly, because I can't go on for much longer: water shortages and the ongoing water wars with housing developer's installable avariceis having a huge impact on the agricultural landscape in the state, with inevitable consequences that won't fully come to head for another few years. Water wars are abysmal here and been in full swing for at least a decade (I first came here in 2007), and none of it has been addressed, add that to the massive influx in population, mixed with myopic shortsightednesses for quick profits and you have a recipe for disaster.
I'll be honest, I don't get why most who JUST showed up for the weed didn't end up in WA or OR, the winters there are milder the housing is more plentiful, cost of living is around the same or lower and the weed is arguably better there.
With that being said, my response to Italy's initiative: Avanti ragazzi! Italy had terrible weed when I was there, it was some seed laden thing from Spain or Morocco going for stupid prices; luckily Switzerland has much better quality, albeit far more expensive. One thing you may have, a I have first hand experience with this, is pushback from large growers; Italy is one of the major cultivators of hemp, and if the business end follows the same trends as we see in the US you will see friction between the two, despite 'supposedly' having the same goals as short-terms profits are all most people see. Cross contamination, while real, gets blown out of proportion and especially in Italy local/state governments can be bought to favour one industry over another, this is happening in CO and OR.
Sidenote: CBD and other cannabinoids are under threat in foods, you'd be wise to inform yourself about what is in the pipeline if the CDPHE and DEA have their way as its all under threat:
https://steemit.com/markets/@growhempcolorado/update-on-hemp-food-and-cbd-products-im-colorado
RE: ITALY, will be ready to legalization??? BEL PAESE with CANNABIS