If your kid “is always on the field wherever he plays”, it would seem the club may feel some loyalty. Don’t get too big for your britches. Still a lot of change coming for these boys in the next few years. Your son’s situation may change on a dime.
As long as his son is happy about his choices and feels like he is going to a team to grow and thrive and still enjoy playing the game! More power to him. Don’t have your kid stay where they are not happy. What’s that flower saying? “If you are not growing , pick yourself up and plant yourself somewhere else”. Express is not everyone’s definition of sunshine. Not everyone grows better there.