Start with the player's experience
After a game, adults often see tactical mistakes immediately. The player may be processing disappointment, excitement, fatigue or something completely different.
Before analysing, ask whether they want to talk and what stood out to them.
Separate support from sideline coaching
Constant instructions from the stands can add another information source to an already complex game. It can also conflict with the team environment.
Support can be loud and positive without telling the player which pass, shot or defensive action to choose.
Watch the environment
Parents do not need to control tactics to care about safety, respect, communication, workload and whether the child can ask questions.
Those are legitimate parts of choosing and evaluating a development environment.
Keep basketball in proportion
Sleep, school, friends, family life, other interests and recovery all affect a young athlete. More basketball is not always the answer to every problem.
A sustainable relationship with the game is itself a long-term development outcome.