While obviously legislation like this should pass to ban child marriages on the books. I just want people to know that this would not do much to stop the practice in the majority of cases.
It is true that it would reduce this abuse to some degree. Or at the very least give the groomed children more time to develop and realize they are being abused. It would be a good step.
However, the majority of these marriage arrangements are already in place in these communities long before they go "on the books". It is usually extremely patriarchal religious communities where women and girls are not only subject to usual patriarchal structures of our society, but to a form of oppression, different from but on the same level as an apartheid state.
These communities definitely stay protected in the rare instances of any form of law enforcement by these types of laws. But, it is on the level of black people "technically" being allowed to vote in the Jim Crow south. Getting rid of a law like this will not change to the structures of enforcement or the communities that allow these abuses to happen today. The Jim Crow south needed federal law enforcement to enforce its abolishment. That's why I make the comparison. The local law enforcement are literally the people that uphold the patriarchal structures and abuse to begin with.
Unfortunately, the real solution to these issues is not what anyone wants to hear. These communities need to be broken apart, they need fundamental reeducation, and the children of these communities need to be separated from the abusers. This often means separating children from their mothers; as the women in this society are both victims and abusers.
The adults need to be subject to mental health care and reeducation to give them the opportunity to show they can function outside of the abusive community they were born into.
These are communities built to abuse and oppress children and women. They are Nazi like societies that should be treated as such.
We have a long way to go when we can't even get a simple law like this passed. And it's really depressing.