Same reason the bathrooms are dirty, no maintenance. You always have to check to see if there is TP in the stalls too. Now that I’m in twin hearing aids, those air dry machines hurt my ears bad, so you end up wiping your just cleaned hands on your jeans.
Another reason I don’t go to the mall, I’d have to take out my hearing aids or the noise would over power them. Bad enough when there is over head music or a loud speaker. Can’t turn them down enough to mute out the over loud noise. I’ve had to learn to turn them nearly to mute to just grocery shop. I have low end Freq. loss of half my hearing.