Orthodox Jewish writing
Ishut - Chapter Eleven
"When a girl of less than three years of age engages in sexual relations, even when her partner is an adult male, she [is entitled to] a ketubah of 200 [zuz]. Ultimately, she will heal and be a virgin like all others."
Jews marry mentally incompetant people
Orthodox Jewish writing
Ishut - Chapter Eleven
"4
Whether a virgin is a bogeret,7, blind,8 or an aylonit,9 she [is entitled to] a ketubah of 200 [zuz]. By contrast, no provision was made for a ketubah for a woman who is a deaf mute or mentally incompetent. [The rationale is] that no provision has been made for the marriage of a mentally incompetent woman at all."
Jews marry mentally incompetant people
Orthodox Jewish writing
Ishut - Chapter Eleven
"When a man marries a woman who is a deaf mute or mentally incompetent and writes her a ketubah for 10,000 [zuz], the obligation is binding"
I'm surprised that doesn't apply to all women, given that they are all mentally incompetent
https://web.archive.org/web/20211208015107/https://www.chabad.org/library/article_cdo/aid/952885/jewish/Chapter-Eleven.htm
Orthodox Jewish writing
Ishut - Chapter Eleven
"Similarly, when a boy below the age of nine engages in sexual relations with an adult woman, she [is entitled to] a ketubah of 200 [zuz], as if she had never engaged in relations.6 For it is only after a boy reaches the age of nine years and one day that relations with him are of consequence. Before that age, they are of no consequence."