Dont think this is the kind of thing that should come down to law.
In NZ we are taught not to make the first turn until after 500agl.... but it is not a law.
I think the grey area between law and practice needs to be as wide as possible.... and not just in aviation.
Standard procedure should not be on the same boundary as the law..... you need room to move.... Same in all aspects of life.
For some reason the law keeps re-adjusting itself to the norm, and the norm keeps having to be moved away from it... Once again, not just aviation Im talking about,
One day we wont fly anymore..... just stay at home in padded cells because its so much safer.