This "I'm bored with my life. I shall appify it and travel to random countries" stuff is a whole level beyond First World Problems. It is something like First World Problems of the Jet Set. Yet, this article doesn't cast him as a member of the Jet Set. Modern Life has gone to some rather weird places that were simply inconceivable until incredibly recently.
You'd be surprised.
Humans are not animals. They can have such worries and desires regardless of their material status.
Even people in eras that were horribly materially constrained, had to fight wards, work their ass off, people in anything that we can define as "First World Problems" had similar (and even more extended) concerns.
The movement of existentialism in Europe, for example, was created and popularized by people who had participated in major wars and struggles, and then were left to make a living in the ruins of post war Paris and Berlin and such (Sartre himself was drafted, caught, and spend a year as a prisoner of war in Nazi camps).
And there have been people with wanderlust (desire to travel to "random countries") for as long as there have been people -- including tons of people in dire economic situation, from third world countries, and what have you, sailing etc.