I haven’t done archery for many many years, but I started with a conventional flat bow made by Slazenger, still got it upstairs along with the arrows, quiver, arm brace and finger protection.
I do feel that it’s best to learn with a basic flat bow, as that teaches you how to aim without artificial aids, learning about windage, ballistics, etc, without a complex bow getting in the way. As a sight we used to put a bit of Elastoplast on the side of the bow and stick a glass-headed pin in it, adjusting it a bit up and down until you were getting a neat consistent group. Simple, but effective.
Not that I don’t love compound and composite bows, they’re beautiful things, but the absolute simplicity of a flat bow/long bow is what archery is all about.
Just done a quick Google and found this: http://www.merlinarchery.co.uk/bear-archery-1st-shot-bow-set-orange.html
Got all the bits, seems about the right size and age range, and they do plenty of more whizzy stuff if she really gets the bug.
Cheap as, too. 😀