Plaster is a part of the process of achieving a liveable interior to a dwelling built for shelter from the elements.
The outer shell keeps the weather out. The inside is finished after a fashion, to give us what we require.
We require a flat uniform finish to take paint.
We go from great big bricks and blocks, to plasterboard, to skim, and then to paint. The first coat of paint is just that.......the 1st, implying that there’s more....
and as any painter will tell you, it is they that make everything look fantastic, only by filling and rubbing, again and again......
Now, if the client is going to do the decorations themselves, they have to realise that they must fill, rub and fill again....
Just saying.