I have personally encountered extreme drunks on buses in Seattle and Los Angeles, and on light rail in San Jose, Phoenix, LA, and other places.
And in general, in most downtown US cities, I have seen huge amounts of pathetically drunk people on a regular basis- usually homeless people, who are also often mentally ill, and on drugs- but if you have ridden public transport in the US, and never come across a stinking drunk- you are a lucky person.
In my work, I have worked on public transportation projects all across the West, spending sometimes days on end at stations of light rail, and the daily stream of drunkeness is quite common. Spend a few days in downtown Phoenix, for example, and you will find a resident homeless drunk population of hundreds. There is the swearing lady, the wheelchair drunk, the jovial cowboy, and many more, you get to know as they harangue and panhandle and hustle every day.
In any city the size of BsAs in North America, there are ten times as many belligerent drunks on the streets, night and day, as in Argentina.
I dont doubt for a minute that people in Argentina get drunk- of course they do. But not in the quantity, or "quality", that happens in the USA, or Canada, or Great Britain.
Part of this phenomonen, too, could be the fact that Argentina has a functioning health care system- in the USA, many of the street drunks have severe mental and physical health problems, and there is usually no social services or medical services for them. Or homes, for that matter- say what you will about Villas- they are a functioning escape valve for squatting homeless people, who sleep under the freeway in Seattle or LA.
An estimated 10,000 people sleep on the sidewalk every night east of downtown LA. I lived there for ten years, I have seen them with my own eyes.
About half the homeless in the USA are veterans, as well, and a third of those, women. PTSD is rampant, and self medication the usual reponse. Typical waiting times for subsidised drug rehab programs are 2 years in most of the US.
But "party drunks" are quite common in the US too. Ever been to New Orleans? and not just at Mardi Gras. We have a bar district in downtown Seattle, where, on most weekend nights, there are crowds of obnoxious drunks, not quite Cardiff quality, but quite loud, nasty, and rude nonetheless.
Even outside trendy clubs in Buenos Aires, you just dont see this. I see the occasional kids each with their own Quilmes, strolling around, but not the level of loud swearing, belligerence, and pissing and puking in public you can see in other cities.