And yet we cannot stop time, and a decision has to be made. It seems natural to involve the child in this decision.

Of course, the next best thing (if a decision can't be made now) after stopping time are puberty blockers. Which are not completely without risks, but this applies to the other two options just as well (if not more so).

You can't not make decisions, and to claim so is to frame choosing one particular option as not-a-decision.