IMHO, the scariest thing in the world, is, that anyone can walk into a Dealership, or Big Box store, and buy a chainsaw. No license required. Buy a machine that is more than capable of maiming you ... or killing you, and walk away with it. At least a Dealership, will half fill it with properly mixed fuel, and bar oil, and, hopefully, have set it up ( tuned it ) properly. A Big Box store just lets you go through the check out without a care.
I truly don't know which scenario is scarier..
You need a license to drive a car.. You need a way bigger license to drive a truck.. ( Training, testing, and certification ), but.. you can buy one of the most dangerous devices ever invented with no more than cash, or a valid credit card.
Seriously, ANY chainsaw purchase should require proof of proper training, ( certification). People think that a "small" chainsaw, isn't as "dangerous", as a "Big" saw. That's just so wrong.. It's like saying that a scooter is safer than a proper motorcycle.. BS!! Dump off a scooter, at 30 M.P.H., or, dump of a Hayabusa at 30 M.P.H., it's the same thing. You're going down, and going for a slide. A plug in the wall, small electric chainsaw, will open an artery just as quick as a gas powered one. Tons of chainsaws come with ( in the box), that guard to reduce kickback.. Yeah.. like anyone has ever put one on.
Let me be clear, I'm not in favour of any "Nanny state", Government interference into our lives, or of making our incomes.. But, "Customer States".. is an indication that some basic instruction, and certification, before purchase, might be in everybody's best interests. I'm not talking about weeks of training, or hundreds of dollars.. Just an afternoon of the basics.. mix ratios.. basic tuning.. how to hold and use the saw.. Most saws come with a manual, they show and explain how to do basic cuts.. But, there's no requirement to read the manual before yanking the starter cord.
Sorta on that note, I saw the thread about chainsaw injuries. I'll never touch a saw again without a helmet ( with ear protection ), chaps, and steel toe boots. I don't care how 'effin hot it is, I'll sweat, and take more breaks, but I'll never cut again without full gear. Ever.