[euro] Not very scientific but:

Latvia lost 13% of its population between 2002 and 2012, especially young workers moving out; it pegged to the euro in 2005, and the economy shrank 25% in the economic crisis. Articles warn of demographic crisis.

Ireland's 2013 emigration was about 2% of its population. It's on the euro. Articles refer to "generation emigration".

Searching for [iceland emigration] finds tips on how to immigrate *to* Iceland, and no top articles warning about disaster. It is not on the euro, but is in Schengen (so free population movement is available), and the government just withdrew its EU application pending further referendums.

And some people still think Scotland should be on the euro, or the pound, in the event of independence...

Use of resources

Some people will whip out their smartphones to look up facts while conversing at the bar.

Other people will post to mailing lists from home without bothering to do a cursory wikipedia or google lookup of whatever they're admitting they're not certain of, like "what is the Mona Lisa painted on".r