harryagain pretended :
Well, she shouldn't be reversing out.
She should either turn around or reverse in.
So she is at fault regardless.

Agreed! There were no head injuries and as already said he was riding
on the grass verge between road a pavement.

A likely scenario is that she had reversed out of that drive lots of
times, over that rarely used pavement and never seen anyone on foot or
a bike, so why bother slowing down or looking?

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk