The assumption is that women and children are not, or cannot be, fighters. The morality is that women and children are worth more.
I’m a man with two small children. My wife was treated like a goddess while pregnant. Never seen anything like it, very eye opening, had never seen a person so societally elevated. Humans, rightfully, place a premium on the lives of women and children.
It’s how we mammals, evolved. From a perfectly brutal perspective, and ignoring smaller factors, I can splatter my seed everywhere. The woman has to take it from there, and that’s one hell of a burden.
As much as I love the idea of sexual equality, it’s simply not true when survival is at stake. So yeah, as a man, I’ve learned my life is worth less. And I’m fine with that.
tl;dr: Suck it up boys. Your life barely counts vs. women and children. You got plenty of other advantages.