Is 25 countries before 25 actually realistic?

Between 16 and 25 you have roughly nine summers, nine winter breaks and, for many students, at least one exchange semester.

Cluster your travel. One funded placement in Europe or Southeast Asia often puts five or six neighbouring countries within a weekend bus ride.

The goal is not a stamp count. It is building the reflex of applying, moving and working somewhere unfamiliar — the part employers and graduate programmes actually notice.