I was just wondering?
If you drive your modern, super safe, fully airbaged vehicle at 30 miles an hour with a couple of children sitting on the back seat without seatbelts on you will get prosecuted.
And yet a couple of kids loose on the front seats of a double decker bus, with their eyes inches away from a huge glass windscreen
Hurtling along a country road at 60 miles an hour
while sat on a seat 10Feet off the ground draws scant attention! Huh!