In article you wrote:

I'm not much up in fruit growing but is it worth mentioning that a young
tree of 5' to 6' is unlikely to need actual pruning just yet? A bit of
light encouragement not to have criss-crossing branches etc. perhaps?
Is
that right for something that's such a 'baby'?

Depends. If one wants to grow an espalier or trained fan you would prob
have some serious pruning to do to get the beginnings of the shape you are
aiming for.