My house is old and run down so sometimes I go to open houses in town in contemplation of moving. My neighbor across the street is a realtor so I often pass by houses he has for sale and sometimes chat him up about them.
I went to an open house on Sunday and ran into a person I used to be friends with whom I hadn't seen in 15 years. She's a great friend of my ex-wife; during the time I had visitation with my children, hers was the house they always wanted to go to on pre-arranged sleepovers with her children instead of on scheduled weekends with me.
Whenever I encounter townspeople from way back when, I always ask them about what they currently know about my three children (now adults) because I haven't had any communication with them in almost a decade. The divorce, you know.
This woman answered all my questions, bless her (in contrast to my children's mother, who stonily kept silent when I encountered her on a street two years ago and asked her about my children's welfare). It turns out my two older sons have recently broken up with their girlfriends so that tells me they're alive at least, I infer, and the youngest one got married a year ago.