What is your biggest regret?

"When I was twenty, I and my friend were offered to go to Kathmandu to join the security forces of the then King. We were to go to Kathmandu and walk around the royal family. Sometimes as guards in ceremonies, and sometimes as gatekeepers. My son was born at that time, so I could not leave. But my friend did. He returned to the village only once to settle things. I hear he is a very rich man today. I hear he owns several houses and cars. If I had gone, maybe things might have been different for me too."