I believe the assistant coach is just 16 who took the boys into the cave.
I thought I saw 23-25 and the head coach was around 29
The assistant coach is 25. The head coach is 37.
https://www.washingtonpost.com/world/asia_pacific/he-loved-them-more-than-himself-how-a-25-year-old-former-monk-kept-the-thai-soccer-team-alive/2018/07/07/b4100076-815e-11e8-b3b5-b61896f90919_story.html?noredirect=on&utm_term=.797a0ca08aad