Yes, I have seen this, and it can be just as uncomfortable for the child as obvious favouritism.
The coach is probably trying very hard to be fair, but fairness does not mean treating your own child worse.
If you raise it, I would keep it about the pattern rather than accusing him of anything: “I’ve noticed he seems to come off first and gets corrected more than the others. Do you think you might be overcompensating because he is your son?”
That gives the coach room to reflect without becoming defensive.
For the child, the message can become confusing very quickly. They may feel they need to be perfect to prove they deserve their place, or that football with their parent is different from football for everyone else.
The goal is the same standard and warmth for all players, including your own child. Neutrality is not harsher treatment.
