Every league, every age, has unwritten rules. Nobody puts them in writing. Coaches know them. Parents figure them out. New families get blindsided.

The roster rule If your kid misses two consecutive practices, she’s off the roster. Nobody said it. It’s the rule. The coach will tell you once. Then she’s gone.

If she wants back on, she sits the next game. That’s the cost of missing practice. Communicate early if your kid can’t make practice.

The game-day rule Show up early. Not exactly on time. Fifteen minutes early. Bring your own water. Bring sunscreen. Don’t ask the coach for any of it. That’s parent responsibility, not coach’s job.

The parent-coach rule Coaches don’t want to hear from you during the game. Or right after. Wait a day. Email. Keep it short. One question, not a list.

The tournament rule Hotel costs are yours. Tournament entry fee is usually yours. If the team provides anything, it’s minimal. Understand that before you commit.

The injury rule If your kid is hurt, tell the coach immediately. Don’t wait for the end of practice. Don’t assume he’ll notice. He might not. You tell him. Written email if it’s anything that might keep her out.

The equipment rule If your kid leaves equipment at the field, it’s gone. Coach doesn’t have a lost and found. The facility doesn’t hold it. If she left her glove, it’s someone else’s now. This is a lesson, not a tragedy.

The picking-up rule Be there when practice ends. Not five minutes after. Not ten. At the end time the coach said. He’s not a babysitter. If you’re late, he doesn’t sit with your kid. Your kid knows to wait inside or call you.

The communication rule The coach emails the team on Sunday. You don’t email him with questions that could wait until practice. You don’t text him about logistics. You check the email and you read it.

The bigger picture These rules exist because youth sports has fifty families and one coach. Expecting hand-holding is unrealistic. Understanding the unstated expectations means your kid plays, and the team runs smooth.

Ask a coach what the unwritten rules are. Most will tell you if you ask.