GAW, there’s an unfair dichotomy, based on your chiluk. The girls have to be prepared and mature. The boys simply have to be mature.
And to Chaverim, I am still wondering what the specific preparation is.
Also, in my time in sem, close to 30 years ago being machshiv Torah and facilitating our husband’s learning was stressed to, but there was an understanding that it would be full, part time, etc. Many of the seminaries now won’t posit a serious ben Torah who is seriously koveiah itim (because we know that ben Torah is not limited just to those who learn full time right, or is that another thread) as a legitimate option.