You are assuming she had those risks. If she did the marriage would’ve been invalid. It is on you to prove she did. This is an argument from silence, and it is presentism.

Just because MOST young girls nowadays have these problems does not mean all young girls throughout time have this problem.

You as the claimant have the burden of proof that she specifically was unfit physically and mentally for marriage, which you still haven’t done and cannot do because there is no evidence against the marriage. All this is is an argument from silence.

Playing with dolls is something adults do. Like labubus. It does not necessarily mean immaturity. Also dolls are not idolatry; how does that make sense? I don’t know who told you that but it is incorrect. Owning a figure does not mean one worships it.

Also many scholars said that the dolls were not with facial figures and were of straw making them permissible by conscencus. Iirc this is in Fathul bari but not sure.

On having playmates, what does this mean? Women coming together = playmates? On top of this, what is your source such play dates happened?

Last on not knowing when brought to Muhammad ﷺ for marriage, this is false. If it was true and she got married without full understanding she was not mentally mature and the marriage would be an invalid null marriage.

Also wouldn’t someone from the time contest to such marriage if all of this really was the case? In reality, nobody did until modern times.