Im not a Glock guy, Im an HK guy. That being said, I find it funny that everyone brings up this subject on Glocks, but never on HK. We have the LEM that trigger has no safety at all other than keeping your finger and all other objects out of the trigger. Yes you have to pull the trigger for a bit before a round will fire, but there is not trigger safety either.
If someone wouldnt carry a Glock because they are afraid they couldnt keep their finger or other objects out of the trigger guard, the Glock isnt the problem, the user is the problem.
BTW, I carry my HK in a pocket holster in my front pocket quite a bit of the time, its simple the holster covers the trigger guard up to the grip and nothing else goes in that pocket.
On another note, my wife doubted this method of carry too until I emptied my pistol, cleared it and put it back in my holster laid the gun in the holster on the table and let her try to manipulate the trigger from outside of the holster with her finger, keys, etc...and guess what...nothing happened other than her giving up.