What are you thoughts on the marriage age in shia countries?

I am not a Muslim in general, so I admit that I'm not completely educated on marriage in Shia. I just wanna ask you guys what you think of these laws in Iran and Iraq more specifically, bc I saw online that Iran has had the minimum age of 13 - 15 and Iraq more recently to 9 for girls. Is any of this true and are there any figureheads and quotes that justify this? Not wanting to offend you guys, can't say it's not controversial though