As a father of both sons and daughters who learned ion Israel,
i can tell you that the seminaries are much more cautious and protective of the girls.
All seminaries require that the girls have cell service from the seminaries chosen provider. this allows the seminary to end out mass texts and calls to all girls at once.
Seminaries have curfews, yeshivas don’t.
Seminaries require the girls to tell them where they are spending Shabbos AND WITH WHOM, yeshivas don’t.
Seminaries take the girls on ORGANIZED tiyulim, most yeshivas don’t.
All in all, if you are going to a seminary in Yerushalayim and don’t do crazy things, like going to Petra or Cairo, you will be fine.
Hatzlacha rabba