SmokinSigs357
Expert
Hi. Official revolver guy here.
I'd argue modern revolvers are the safest guns out there, and don't have a manual or passive safety (yes, I'm aware there are exceptions like the S&Ws with grip safeties).
External safeties are all fine and dandy in certain applications, I suppose. I'd hate to carry a cocked and locked 1911 without one. However an external hammer is more my speed. If you touch off a double action revolver reholstering it, you were probably going to electrocute yourself making toast in the shower to save time tomorrow morning anyway.
Even old school non-drop safe revolvers are safe as mumsy's arms if you carry without one under the hammer. You can bang it around all day and with no round lined up with the firing pin, its not going off. Unlike a semi-auto, its still ready to go with the first trigger pull, though.
We live in a golden age of choice, though, plenty of options for any crowd.
Which is why so many carry DA/SA SIGs, Berettas, H&Ks...Dual-action revolver-like first pull, followed by Single action goodness with a magazine full of bad guy repellent...