Dont think its true. A friend of mine covered the entire door with wallpaper and so far nothing happened. You can also change doors or the gate if u wish too. Its ur own unit afterall so u can do what u want to ur house.
I thinknits to try not to do tedious work. Have to rest more
Yeah, just don't think about it, should be fine
Nope. Not true. You can paint your wooden door
Hi, I think you can.
New bto cannot
Old hdb OK..
Not really
Not true.
What is done is done. Already over. My advice is don't think about it :)