Well, the "lock" is sort of a safety on a revolver...cursed by many, but still a (misbegotten, unnecessary) safety device. And I have read several detective or other crime fiction novels wherein a character "takes off the safety on his revolver" which is a clue not to read any further!

As for a safety on a pocket pistol, models like the LCP don't have one and don't need one because of the heavy trigger and IF they are carried in a good pocket holster. Models like the SIG P238 definitely need a safety, if you are going to carry it as intended: cocked and locked. The safety on the BG doesn't bother me because you can use it or not...some like the option, some don't. Use it or not, as you prefer.