It might come as a shock to you, but full plate armour like what's used in, say, Game of Thrones is wildly impractical.
In fact, it's actually downright difficult to even move in the thing, let alone trying to carry out everyday tasks we take for granted. This video, recorded in England, shows a young man wearing full armour for a day and, needless to say, it goes as well as you'd expect.
Take a look.
Believe it or not, it was the getting into a car bit that surprise us the most. It never even dawned on us that actually getting anywhere in plate armour was going to be difficult. Considering they're used to riding on horseback everywhere, it makes sense that the armour can be as big as whatever.
Also, the whole armour actually locking up at a joint was interesting - he couldn't even move. So, what's the lesson? There's a reason nobody wears plate armour outside of Renaissance fairs, filming for TV shows and Cosplayers - it's too damn difficult to actually do anything with them.
Lesson learned, eh?
Via YouTube