Jez nailed it-
If you come down here on a tourist visa and try to get a job, you are just another illegal alien who cant speak the language.
And the government of Argentina, while at times it may be corrupt, inefficient, bumbling, slow, and bureaucratic, is VERY VERY GOOD at making sure that its almost impossible to legally employ anyone in Argentina who doesnt have legal residency, a DNI, and a CUIL.
Which means its almost impossible for you to get a legal job, "in the white".
And compared to the USA, there are very few illegal jobs, "in the black". And the ones that do exist are being taken by other illegal aliens, from Peru or Bolivia, or Paraguay, who DO speak the language, and will work for ten bucks a day and consider it a good wage.
In the USA, you can get a fake social security card for $25 in most any city. And get a legal job with it right away. That is not possible here.
And the USA is the richest nation in the world. Argentina is NOT. There are lots and lots of very well educated, qualified Argentines, who cant get a job.
I know several Portenos who teach at the University- and all have either another, full time job, or a spouse who supports them- and this is at UBA, the largest, most prestigious college in the country- it doesnt pay a middle class wage to its professors. Who are legal, and do speak the language.
Public education in Argentina is free- so you will be competing for work with people who have graduate degrees.
Which brings me to my cranky old man rant-
What is it with all these kids who cant do anything?
You expect to come to a foreign country, where you dont speak the language, and get a job with NO skills, NO degree, and NO experience?
Heck, even in the USA, where I have been employing people full and part time for close to 30 years, I would never hire an illegal alien that cant speak english.
And I wouldnt hire a young person who didnt know how to do anything. I hire kids with 2 year AA degrees in welding or machine shop, I hire industrial design students who can build models, draw freehand and on a computer like a pro, who are familiar in their sleep with Photoshop and Illustrator and can edit movies or music, or I hire kids who can weave or crochet or sew and cut patterns, and the thing they all have in common- they have spent time and money learning skills, trades, and have LEARNED how to do all kinds of things.
I meet these kids whose idea of "IT" is that they can plug a hard drive into the back of a PC. In Buenos Aires, I know guys who can repair circuit boards at the component level for a few bucks an hour.
If you have enough chutzpah, and some actual ability to do things, there is work to be found anywhere in the world, including BA. But it sure aint fat and sassy like in the USA. Here in Washington State, where I live when I am in El Norte, minimum wage is $8.55 an hour, and even fast food places pay blank eyed slackers ten bucks an hour. In argentina, you will have to work a bit harder than that to earn your money.
Its certainly do-able, but it is nothing like the USA.