We are a metric country. I was born in 1973 and taught entirely in metric measurements. Most people still think of long distances in miles, but the difference between yards and metres is so small that for practical purposes they are interchangeable.
The Weights and Measures Act, however, requires people erecting distance signs to use yards, and forbids the use of metres. This is an out-of-date requirement. Although some local authorities might prefer to retain yards for sentimental reasons, no-one in the country would be confused by a distance expressed in metres. It would also be simpler for tourists and others educated in the metric system, for whom the term "yards" is unfamiliar.
It is also worth noting the ridiculous situation that this law gives rise to on road signs, where the directions to local authorities require them to treat one yard as equal to one metre for signage purposes. So when a road sign says "Road works 800 yards ahead" they are actually 800 metres ahead (875 yards).
This proposal would remove the requirement to use yards, and permit metric or imperial measures to be used at local discretion.