Well, my hubby is studying and we do. I didn't really know they existed, so was pleasantly surprised when I found out they did!
One thing we've had real hassles with, though, is his scholarship (he's a PhD student and on a decent scholarship, enough for us to live off). WINZ had NO idea how to classify it as the University pays him a lump sum, and he uses some for research expenses and some for living expenses. In the end, they told me I had to front up with proof of everything that wasn't living expenses, and if they agreed they would ignore that section. So I put in hours of work (no exaggeration) going through our accounts working out what was what, because I like to be honest about these things not just take a stab. I fronted up with that to be told that no, they were just going to classify it all as income

I was SUPER unimpressed. Probably not relevant to many people though, you have to be on a good award for it to make much of a difference.