Not a practical, let alone ethical policy in the context of British (and most European) cities, where close proximity of motor vehicles and pedestrians is unavoidable. There is no criminal offence of 'jaywalking' in the UK, and pedestrians have priority over cars at junctions etc.
So pedestrians are not responsible for their own actions? The nanny state must take care of them 24/7?
Last I looked, it was pretty stupid to wonder out into the road.