As a kid you were in a tough spot , not much you could do other than be very aware of the folks around you and stay vigilant about where folks were pointing thier guns.

As an adult , you have the ability to speak up , and if that person doesn't recognise or learn from thier mistake .

.... no 3 strikes in firearm saftey. Be the last time I would want to be around that person with firearms involved.
As a kid , maybe 8 or 9 , I got an O/U 20 ga for Christmas , my second time shooting skeet at a club I was frustrated because I missed another 2 birds and had only hit maybe 9 out of the 25. Remember , an o/u shotgun and missed both birds. I just turned around and swept the muzzle across the knees of the person on the station next to me before I broke the action open to take the emptys out . I didn't really hear about it till the next day , but my Dad had a real clear talk with me then.

He didn't want to discourage me as a young shooter that was frustrated so he bit his tounge for a day. But made it dang clear that is something that even life long members of the club lost thier membership over , and the members there actually gave us (me and Dad ) a
one time pass on that one .We stayed members of that club for many years after that

Just a bit of my perspective.
Like helmets on motorcycles or snowmobiles , or seat belts / air bags in cars . Sometimes you just can't make enough laws / regulations to fix stupid.
I'm still not saying that , that extra bit of saftey is wrong or useless . Rather just saying that
for me , I will try to avoid it. Partly because I'd want to install one of those replacement kits with the nice screw and a non rebounding hammer. And that is just setting oneself up for a law suit if anything ever happened.