I just don't like a manual safety on a carry gun, and Glocks are designed to be carried. Safeties are for range toys.
It's your opinion, and you're entitled to it. I do disagree a bit about "range toys" though. I have the opposite opinion, semi autos WITHOUT a safety are range toys.
Sure, Glocks are meant to be carried. Every small arm that isn't crew served on a ground mount is meant to be carried. Trouble is, the people who are responsible and safe carrying Glocks (and similar guns) don't make the news.
So what do we hear?, we hear about the guy who Mexican carries a Glock in his SWEATPANTS, and when the gun slips (and it will carried like that) he grabs for it and shoots himself in the testicles at Home Depot.
or we hear about the sports star who does something similar at a nightclub, where he's not legally allowed to have a gun...
Or, my personal favorite, the video of the undercover cop at a SCHOOL who tells a class of elementary kids "I am the only one in the room qualified to handle a Glock "Fou-Tay" and then shoots himself in the leg with it.
I'm not picking on the Glock, directly, the gun is mechanically safe. IDIOTS with Glocks are not. And its just my opinion that idiots with Glocks are less safe than the same idiots with pistols that have safeties. Just because there is a chance they will have the safety ON when they have an accident, or lapse of judgment. Not a big chance, I will admit, but a chance, nonetheless. If the safety isn't there, then there's zero chance it can prevent an accident.
Carry what you feel comfortable with, but don't call everything you aren't comfortable with a range toy, because, not all of them are, by any stretch.
I'm fine with the "range toy" that Uncle Sam issued during the greatest armed conflicts in human history, and that he also put in my hands to serve at need.
I'm even ok with the Beretta, (also has a safety) though tis not my favorite or first choice.