True, most parents are very careful.
That being the case why do hundreds of thousands of children get injured in accidents every year?
ETA: millions actually. So where are these "most parents" who are so very careful?
More than two million children under the age of 15 experience accidents in and around the home every year, for which they are taken to accident and emergency units. Many more are treated by GPs and by parents and carers. On average 62 children under the age of five died as a result of an accident and over 76.000 under the age of 14 are admitted for treatment of which over 40% are under 5 years of age.
Those most at risk from a home accident are the 0-4 years age group. Falls account for the majority of non-fatal accidents while the highest numbers of deaths are due to fire. Most of these accidents are preventable through increased awareness, improvements in the home environment and greater product safety.