First of all hello dear friend Well, look at it this way. 1. He was responsible for 12 young lives. 2. The entrance had a warning signs about flooding 3. No safety equipment was brought with them, other than some single flash light. 4. They ventured 4 km deep inside of the cave system 5. Their coach is an adult of 25 years of age Now, I think it could have been normal if they went in some 200 meters considering the above statements.