Hello there,
I am a Detachment Commander and instructor in the Army Cadet Force working with Kids from 12 to 18 years old.
I don't know about the Bushcraft side as I am not aware of any formal qualifications in Bushcraft. If there are I too would be interested, however, from the working with Children aspect:
When Kids are involved it can get complicated... so be careful!!
One thing you will need to work with young people will be a Criminal Records Bureau Check (CRB). And this usually needs to be done through an organisation of some kind.
There will also be all sorts of liability insurances, parental consent and risk assessments involved too. Not to mention dealing with and ensuring that you work within the legeslation of the Childrens Act.
If you are going through a Youth Organisation, or educational authority, you will no doubt have all the legalities and formal training on these matters in place.
There are some formal qualifications for Hiking/Walking that you need to be able to take kids walking on the hills. The best place for this information is on the British Mountaineering Council's website:
http://www.thebmc.co.uk
Off the top of my head, for UK, you are looking at either:
Walking Group Leader (WGL) - allows you to take groups in lowland areas/moorland where there are no steep gradients, below the snowline (600m) and where no ropework would be required.
SML - Summer Mountain Leader:- upland/moutnainous areas and scrambles ..
Check out the website for the full legalities and stuff..
None of them are quick to achieve.. you have to have some basic experience to start, then attend a training course and get your training certification, then do a consolidation period of certain number of "Quality Walking/Mountain" days, then do a weeks assesment course.
If your going the Civi route (bare with me as I'm doing it through the military at the moment), it can be quite a pricey affair.
Plas Y Brenin in North Wales offer courses and could give you an idea of prices etc.
Hope this Helps... if I can help any further, give me a ring. I will also check back on this as I would be really interested to find out the views on other youth organisations (scouts etc.)
Cheers
Sie