“Thats worked great on revolvers since the 1835 or so.”
Except revolvers have 12 pound triggers and Glock only 5 pounds, which are more akin to single action triggers and not double action triggers like a revolver.
It’s real easy to pull a Glock trigger inadvertently.
In a world where self defense “experts” recommend a round in chamber with no safety the Glock is no better or worse that the variety of other weapons that fit the bill.
I have two frequently used carry weapons, on with a safety (which I use) and a Glock. I bought quality holsters for both that fully cover the trigger and feel quite safe with either.
For pocket or waste band carry without a holster, I would feel safe with neither.