That truly is scary. IMO It seems most people here in Colorado either grew up with guns and loves them, or they have little to no experience with them and hate them. I didn't grow up around guns and had quite a bit of anxiety around them for a long time because I didn't understand how they work. I spent time a couple of years ago with a buddy who is an absolute fanatic, and he took me shooting a bunch and taught me quite a bit on how they work and how to be safe. It piqued my interest, although I still had quite a bit of anxiety because I thought "hey this is my buddy who's never been in the military or had LEO background, so he could be teaching me wrong".
So, I went and found the best range and training facility around (owned by former special ops guys and run by them along with competitive shooters, former LEOs, etc.) and took several classes including range safety, basics in handgun ownership, legal aspects of ownership I and II, how to pick the right gun for you - all were classroom taught with no shooting. Then I went back and did a weapon selection class where you can try several out, then Pistol I, Pistol II, CCW, and followed it up with renting about 15 guns and picked the brains of every guy at the range asking for advice and help along the way before I picked out one to buy. I probably in total did 10 various classes, shot well over 20 guns, put 2,000+ rounds downrange and spent over a year reading and researching before I bought anything (Sig P229 was what I eventually landed on). I go back to the range for practice/fun about 2x per month, and I try to take a class every 2 months or so to keep up on top of things.
I felt like not having the advantage of growing up with guns I needed to do whatever possible to develop an appreciation for the power, responsibility and potential danger they afford, so it does bother me that other people do not put forth at least as much effort to become a responsible owner. I feel like regardless of what the law mandates, it is incumbent on anyone who is interested in gun ownership to go through the steps of learning how they work, how to be safe, understand the legal implications of actions taken with a firearm and make wise decisions in employing them for whatever use they intend. I am usually quite leery of imposing more restrictions or laws on most things due to the fallible individuals who write and enact those regulations, but I think it's imperative each person take their individual responsibility seriously and avoid putting others in harms way. PS - that was an unfortunately long way of saying I think your friends need to get more training because they're probably more a liability than anything at this point.