DO NOT ABDICATE YOUR ROLE AS A PARENT TO BE A HALF-ASS COACH.
There is a fine line between being a parent and a coach. Don’t push the boundary between the two worlds, because most times they are not congruent. Stay in the parent area and leave the coaching to the coaches.
You should leave the coaching to the coaches and be the support your child can only get from you. When you take on the role of the coach and point out all the mistakes your child make, that is not helpful. You think you are being helpful but in the vast majority of the time, the parent doesn't know what the coach was working to achieve in the game. You child is feeling bad about his mistakes and your pseudo coaching doesn't help the situation.
Your child will have many coaches in her life but she will only have one set of parents. Be a parent. Why would you ever consider jeopardizing the most important role in your life to become a half-ass coach?
Your child is looking to you for guidance and support, not coaching. Be that support. It’s your job