Way to over simplify things. Present-day Venezuela is very far from being communist even though the current government likes to market itself as such.
The reason Venezuela is like it is now is an incredibly complex subject spanning several decades of bad governments, corruption, oil money dependency, social inequality, etc ... accelerated by a particularly disastrous current government.
People in Venezuela will still need Bolivares for everyday life, though. So, just like people now buy USDs or Euros as savings they could also do it with bitcoins I guess, no?.
Also, as far as I know, it's illegal in Venezuela to buy/sell foreign currency outside of the systems provided by the state. The anonymous nature of bitcoins could be an advantage in that sense.
I don't know if they have an alternative currency but there are some community banks similar to that one operating there (http://www.bankomunales.com/ (in Spanish)).
This is exactly how voting works in Venezuela. That way you have two vote counts (electronic and physical) which need to match up exactly when counted. This ideally makes it harder to commit a fraud than having just one.
In a few countries they will give you a flat fee as long as you are unemployed (UK) but in others it's linked to your previous salary and only for a short time (Spain and Germany). Others I don't know much about.
And even the relevance of the credit score depends on where you are and what you're planning to do with it. Where I live you can get mortgages without a credit history as they value more that you can live within your means than having a history of going over it.
I think the reason it hurt the US politically and economically is because the trust they shared with the rest of the world was damaged. Arguing that it should have been kept a secret to avoid it shows a very US-centric view of the world where you're thinking only about the well being of your country. As others said, it has a lot to do with your privilege.
I don't understand why people would want to go straight to work when only 19 if they have the choice not to. That's the best age to enjoy and learn about life, to grow as an integral person.
I would never ever exchange the time I had at uni for being at work, no matter what I could be doing. At uni not only did I become a programmer, I also met by best friends, I met my now wife, I got involved in social issues, I traveled, I formed a band, learned foreign languages and yes went to lots of parties, nothing wrong with parties. It's not related to what I do on a daily basis for work? No, so what?. Has it helped me in my career? I don't know, but I still got my dream job and it has surely made me a much happier person.
The reason Venezuela is like it is now is an incredibly complex subject spanning several decades of bad governments, corruption, oil money dependency, social inequality, etc ... accelerated by a particularly disastrous current government.