Agree with you on that.
Also, doesn’t the Glock require the trigger to be pulled for a take down of the weapon? The trigger should only be pulled when one is firing the weapon. IMO, this is a very poor design.
Many do, some don't. I don't know the full list, but it's not just glocks. My Ruger Mark II does. The Sig 226 I plan to buy in the next few months doesn't. M&P don't either.
I simply don't understand ND. I've been handling firearms for 30+ years and not once would I pull the trigger without knowing exactly what would happen. I'm super paranoid about it...I check and double check.