In the Harry Potter universe, there's not really any need to text. People can use floo powder to talk to other wizards and witches through their fireplace and they can apparate at will. But what might happen if the characters from the Harry Potter books started texting one another?
Keira Knightley as Guinevere ready for battle. I think that the Picts could have gone to battle in very light armour such as these, but in the case of the women, the breast protectors would've wanted to protect all their breasts, not to show them off. That's not the aim of a breast protector! Apart from that, it's realistic for a very light warrior.