I'm a uni student. My bed is 1/3 of my room (seriously - the bed is against the wall, there's 1.5-2m, then there's a desk and the other wall).
The bed gets used as a chair, desk, dumping ground, table - and it just makes sense for the bed to be made (it's also an incredibly focal point of the room).
Mind you, all I have to do is air the sheets, chuck the duvet on and neaten up the pillows - no sheets to go for the "hospital corners" etc.
But if I *did* have a proper bed like that, I'd still make it - it's just so much nicer to get into a made bed than a messy one.
Now "pointless" is washing the sheets before the girlfriend comes over. Yes, it makes the room smell much better, it's nicer and so on and so on, but, well, do the maths.