The problem we have in the UK is lawyers.
They are horrifically overpaid and are the direct cause of the ambulance-chasing culture in which we now live. You only need to see the sort of ads on Channels 4 & 5 (Fred slipped on a droplet of water and received £15m compensation, call 0800...etc.), to see why so many organisations (like your Scouts, Mark) live in fear of being sued.
When convicted criminals can sue under the Human Rights Act, you know we're in trouble.

As for the practical side, when I was young I had to learn about mechanics and DIY as our family was not wealthy and I had to nurse a succession of cars (Anglia 105E, Morris Minor, Mini, etc.) that needed weekly care just to get them to go! I remember changing a hydrolastic sub-frame on a Mini in the dark in December (on the roadside) in order to pass an MoT. These days, all the kids seem to have 06 reg Puntos and Pugs. They wouldn't know a plug if it hit them...and don't ask them to locate an air filter.

OK I know I sound like a typical old git ("youth of today - they don't know anything"), but if the chips were down, I think I could see off quite a few youngsters in a practical challenge. At least I can re-wire a three-pin plug....how many 18-year olds could do that?