Not that easy to source such plug in Malaysian market. Some appliances also have their plug protected by insulation. Unless you prepared to void the warranty of the appliances, then is ok. So is best way to change the plug point.

Sounds to be right, but then it is not practical to keep on changing the plug, right?
So changing the plug point still the best way. An 15A point won't post hazard on 13A plugs.

Not all will use those plug, especially for TS's case he won't.
I'm sure you have your stand and keep saying the round plug's usefulness, but do stick on the topic and try to answer what TS's needs.Very obvious he won't be installing electrical hob/hood.

After some advise, he planned to change the faceplate. When read, do read all first before trying to derail other people's needs with your personal view.
I will admit I'm wrong by giving TS wrong info if you can show me 20 13A mainstream electrical appliance that comes with BS 546 plug.
TS already mentioned clearly he want to use normal electrical appliances only and don't know what to do.