> The obvious answer is to fly home, not to enter the country, and not to let an untrained and clueless individual remove it. Why didn’t he do that?

We don't know given the lack of details in OP, but a few possibilities come to mind:

- Time-sensitivity to attend a meeting, deliver knowledge, deliver goods, etc.

- Fleeing country of origin to seek asylum

- Relatively extraordinary expense of plane ticket and lack of means to purchase another