How time flies. And so does my son.

It seems like just yesterday we hugged him at the San Antonio airport upon returning from his year abroad in Germany as a Rotary International foreign exchange student. Last Thursday, we hugged him at Austin-Bergstrom International Airport as he boarded his plane for Singapore for his junior year of college.

The University of Texas, where he attends school, has an international study program done through the National University of Singapore. He’ll continue his...