Are there any friendly ppl left???

I’ve been playing for nearly 2 1/2 years and when I first started I met plenty of friendly ppl willing to talk and work some things out, rather than shooting each other. Yet, now it’s VERY rare to find anyone willing to team up, or even trade items. I play official and community. They either kos, even if I’ve got nothing, or act friendly and then shoot me when I’ve got my back turned. Why?