Nice one Chric. One has to do what they have to do these days.
Obviously you need to learn the various flavours of weed and is nothing that cant be got from on hand experiance but it does piss me off that for a lot of things these days it seems like a money making scam. CSCS card anyone or even child protection checks for jobs that don't involve children and then the LGV CPC...what a load of bollox. Somebody is making a lot of money out of these certifications. What happened to good old common sense and using ones own initiative. Why the heck does one need a chainsaw license. I bet they don't need one Texas.

If one happens to chop their arm off with a chainsaw then tough luck. A certified bit of paper is not going to make a difference in the real world when one has a boss that asks them to do something a little risky or loose your job or if one has to adapt the wrong ladder for a purpose because there is no other option available. Do what you've got to do to get the job done using ones own initiative and being sensible. Life is about taking risks and we assess risks according to the situation and what's at hand at the time.
I truly hope at the and of all this you can land yourself a good job with a good wage.