Hypothetical law change? Lorry on bike: lorry's fault. Bike on ped: bike's fault

Well, the idea is to have fewer crashes in the first place. The hit-and-run rate in London is already pretty high, anyway. With the old prevention effect, there is every chance that such instances will actually decrease.

Most people don't plan crashes. Sane drivers don't look for easy targets on the road.

As a cyclist you don't run over pedestrians, because there's no law which puts you automatically at guilt, do you?

The harsh consequences - even if it's** not their fault** and the guilt is implied by default - can make them panic and leave the site of the accident.