.
IIRC, the UK originally was against dedicated DRL legislation
and was in favour of the dipping method but was quashed by the EC
- This may have something to do with it.
I've read that currently 17 countries in Europe have DRL legislation. I doubt that the UK is up to speed on this yet.
Whatever the legislation, the light from LED's is far more effective and efficient than using other light sources, dimmed or otherwise < IMO! [well, actually in some high level studies too].
It's good you're making progress though