The problem is that protecting children overzealously in the short term can make them more vulnerable in the long term. By attempting to protect them from every concievable risk, real or imagined, you risk preventing them from developing the defences that they will need later in life.

Traffic collisions and drowning are the major causes of death in children in developed countries; not childhood illness, as it was formerly, thanks largely to vaccination. Better road safety - that starts with _you_, car owners! - swimming lessons, and greater adult supervision when children are near water, are the most important things here, not surveillance.

When people do horrific things to children, it is almost never a stranger, but someone close to home, and again surveilling the child will not prevent that.

> Better road safety - that starts with _you_, car owners! -

Regulation and technical improvements can do a lot for road safety

https://en.wikipedia.org/wiki/File:Killed_on_British_Roads_1...