It certainly depends on the kind of pocket you are carrying in. I am retired, live in SC and tend to always wear leisure-type workout pants that are loose with larger pockets; certainly not tight-fitting jeans. Nemesis, Mikes, Mika have their sticky surfaces but still just slide around--they do not come out of pocket but give the sense that they are coming out as you draw. The thumb push is nothing but a natural spot for your thumb that does wonders for holding the holster down into the pocket--it is not something that is unusual or an unneccesary movement toward removal of your firearm. Obviously the choice of a holster is a personal thing and another suggestion is that when you do decide on a holster, and if it is purchased via a picture and/or a comment by a poster, be sure they have a return policy--you and you alone must feel the confidence of the holster in practice and not just from a picture or a comment---I just find the movement of the holster as I draw to be unacceptable and the thumb push eliminates that feeling--at least to me. Lets hope for each of us, regardless of the holster, that this discussion is purely academic and never has to be proven for real.