I am not saying one should ride on footpath in crowded London streets, but there are footpaths in other parts of country where you hardly see any pedestrian most of the time.
Don't you think law should be updated?
Whats needed is proper cycling infrastructure that would allow everyone age 5 - 95 to cycle safely without breaking the law.
Our roads are very often not safe for inexperienced cyclists. Especially very busy roads or complicated junctions. In these situations I often take to the pavement, particularly if I'm with my son who is 11. One stretch we regularly cycle the pavement is as you describe - a busy dual carriageway, speed limit meant to be 40mph, but majority breaking that by at least 10mph extra, no cycling provision, deserted pavement along side. All the times we've ridden doen there we have never seen a pedestrian, but to put myself and my son where we should be legally would be suicidal.
Sadly our roads have now been dominated by motor vehicles, which have been prioratised for many years now. Until safe infrastructure is provided for me and my child I'll continue to break the law.
Don't get me wrong, I'm not riding down pavements at 20mph skittling old ladies out of my way - we ride slowly, carefully and give a wide berth or stop for anyone on foot. If its a busy pavement we get off and walk.