I was walking near ED station, where the pavement is pretty wide, and the way was completely blocked by a man and his 3 children cycling on the pavement. I have also often had to take evasive action when a child veers towards me, cycling way ahead of its parents. Cycling on pavements is often dangerous. Let the children use their bikes in parks until old enough to have taken a proficiency test to be safe on the roads. If the original poster wouldn't allow her children to cycle on London roads she needs to think again about her decision to have bought them bikes.