Dry Cleaning for Students?

On my post-prandial peregrenations this lunch-time, I passed the local Dry Cleaners who were advertising "20% off for Students".

Students using Dry Cleaners? What possible use would a student have for dry cleaning?

Or have I got the wrong end of the stick? Is it now fashionable to have the students themselves dry-cleaned? What is the position in regard to Health & Safety on this?

Is it a student craze involving whizzing around in the tumbler?

Has suede made a comeback?

I'm clearly out of touch on this one.