That’s life.

On my way to my client office yesterday morning, I saw an old man standing absentmindedly　on the street in the cruel heat. His face looked familiar. I tried to remember. Just as I walked passed him, a name "Kuriyama" suddenly hit upon me. I spoke to him "Kuriyama-san?".
The man said "yes, I am." with a puzzled frown.
I have never met him but his face exactly looked like my primary school classmate, Kuriyama.
"I was studying with your son in OOkayama primary school. I knew you are his father because you are two peas in a pod with him."
"そういうものですかな." His frown broke to an unexpected bright grin.
"You look young."
"No no I turned 90. Every part of my body aches."
"Is your son doing well?"
"He doesn't live with me."
".....So... you feel lonely."
".....That's life." He looked down.