This is a common design flaw of many restrooms, both in office buildings, restaurants and public toilets.

The door being left open, is sometimes a positive. Not having to touch the handle is a pretty decent trade off for standing in the open showing your man parts.

Not sure if im used to it, but its one of those things you just have to put up with im afraid.

What i cant get used to is someone taking a s**t with the door wide open and casually talking to his mate stood right there, this i will never understand.

Call me an exhibitionist, but I don't mind whatsoever.

Saw a  guy in the mall last week. Squatting in the stall, door open, taking a poo while happily munching away on an apple....

  Actually yeh, I have noticed this a few times. Can be kind of fun when you're taking a pee to give a creepy smile to whichever passing girl chooses to make eye-contact though.

  Speaking of eye-contact me and the missus have just moved into a new apartment and there's a window sized hole in the wall that makes it possible for me, being 6 foot 2, to look straight through at my father-in-law as he's cooking dinner. Feels a bit awkward but I try to keep it light: (in Chinese) "Smells nice, what are we having?" (trying to pee quietly) "Chicken eh? I love chicken" (making the shake) "That does sound good. I'll be right out......nope, wait......still got a bit in reserve."

Yep, this is very common, even at some newer, more modern mall and office bathrooms.  There is a new mall I frequent and all the urinals are lined up perfectly and have no privacy walls between them. The women's bathroom is of course lined up directly across so anyone looking through the door get a whiff of that fresh manly lavender scent, but also has a good chance of  viewing some junk.  They even put up signs on how to properly use the urinals, so you aren't standing too far out that everyone can see.

Also, it is common here that the washroom is between the 2 bathrooms, with no doors between, so you can get a good luck of men and women doing their things while looking cross-eyed in the mirror.

Not really! I think you must just have the worst of luck. The bathrooms I been to at least have a door. The only bathroom I went to without a door was one that was being repaired or really I didn't know what was going on with that place. So I've really only seen one bathroom style like that here.  

Which city are you living in? It's probably the city your at because the one I'm at has doors to conceal what you are doing!

Oh hell I thought this was about the guys who sneak a peek or more while you're busy with your plumbing. 

No, I'm not used to that nor the open floorplans, lack of screens and guys who don't bother to close the door. 

I am more concerned with lack of maintenance in the W.C.

Don't touch anything is a good rule to follow.

Public ladies' restrooms are awful too. Half the ones in Nanning are the open-air "sluicing" type...where you straddle a gutter with your ass to the wind and then up-end a bucket to wash away your doings. I just can't use them. Or the ones with the half-walls, where people can look over the walls to see you. Nope. Not a chance. I can deal with squatty pottys and dirty WCs no problem, but public urination is just not in the cards for me.