I think your knife & Bic lighter questions are pretty unrealistic.
However, if you feel those are serious issues. Perhaps you should stay away from "plastic guns"...
of course this means you will have to sell your car since probably 50% or better of the components are plastic...
I think the list goes on forever. I imagine when the combustion engine was dropped into a buggy...someone said "what's with this thing...my ol' Bessy'l run that into the ground"
new is not always seen as better...but I can tell you this much...I love not having to worry if I clean my Glock right away...the same goes for my USP & P99. These new "spaceage" finishes and frames are pretty user friendly. That is one reason people like them so much. Another reason is the simplicity of the newer designs. The Glock is butt ugly but SIMPLE. Simple to clean. Simple to shoot. I rank my Glocks with any other good quality guns...H&K, SIG, CZ, Makarov, etc. I'm not a "Glock Lover"...I'm a gun lover and value all good quality guns,