Because an Italian on the bus today used the term "to climb the mountain" when talking about taking girls out to dinner and getting to know them before having sex.
"But that's not how you do it in Sweden."
We guess it is not so much about hiking, but rather not finding the time in the calendar for hanging out with people who you don't know, and if you actually talked to them you would find out that they are boring.
Maybe if there were more places that sold pizza in triangular shapes; grabbing a slice would count as dinner, be time efficient, delicious and encourage us to at least try to get to know each other.