Wondering about the past

In 2005 I started sponsoring a child, then aged 8, from the Phillipines.

Today I found all the letters he sent me up until he moved in 2015.

Since then I've heard nothing.

After a decade...
Well over $5000 in sponsorship...
Dozens of letters...

Nothing.

Assuming that Compassion isn't a giant scam and the letters were genuine, thus making my kid alive and mobile at 18, all I can now do is wonder.

Did he go to university?
What does he do for work?
Is he married?
Does he have a family?
Is he still in poverty?
Is he even still alive?
What, if at all, does he think of me?
Does he still have, or even remember, my letters?
What would he say/write to me now?
Would I, if so inclined, be able to track him down?

Potentially, he now has a far better life because I was an, albeit small, part of it.

These questions remind me of the young people I've come in contact with at various churches as their youth minister.

What are they doing now?
What memories, if any, do they have of me?
How would they have described the youth ministry I were the leader of?
Are they connected with a church?

For many, even those I'm friends with on Facebook, I have no contact with.

All I'm left to do is wonder...