Modern ANZ ones also have the plastic coating as well. It seems to be a more recent introduction though so there are still plenty of non-plastic-coated ones. Is this also the case for the UK/EU ones?

I, at least, try and dispose of any non-plastic-coated plugs though.

You can still find old lamps and stuff that don't have coated prongs, but I don't remember seeing a consumer electronic that's uncoated for at least a decade.

Sleeved pins have been required in the UK since 1984.

I was talking about the EU. UK: I don't remember ever seeing an uncoated one there.