At first it is intimidating, for a foreigner who isn’t very familiar with a big city’s urban railway system. Much more if a Third World visitor takes on the complex Berlin system with its U-Bahn and S-bahn overlying the tram and bus, and the industrial-strength Deutsche Bahn comprising the much bigger train network that crisscrosses all of Germany and beyond.
But once you get hold of a map and a day-ticket, then all your fears evaporate. After some fiddling with euro coins and perhaps a quick help from someone who understands Deutsche sprache better than you, getting that ticket machine to belch out your precious day-ticket also becomes an easy piece a’cake.