I'm a Silver 4 ADC / Jungler and I can see both sides of this.
When I'm ADC, I also assume we're not going to get ganks bot lane at all. I play overly safe and conservative until I get a good sense of my support.
Now, I never will take the jungler's camps until mid to late game. But come mid to late if it looks like I am going to be the carry or hard carry then I need all the gold I can get and I will take available camps. Like, if after 10 minutes I am 5/0 or better, you can count on me taking red buff for the slow so I can really melt faces.
BUT -- if the ADC was trolling you like that -- following you from camp to camp and last hitting, then that is definitely aggravating and reportable under Griefing. Just explain that in the comments and ask for a review of the griefer's gameplay.
When I am Jungler, early on I powerfarm. I will only gank if a lane is pushed and I'm nearby. If one of my camps gets taken -- for example sometimes an Ekko will take raptors, then I just keep moving to the next camp. Just like if an enemy Yi came in and farmed my red buff and krugs, then fine, skip em and head back toward Gromp and Blue.
Every game is different. You have to adapt and be flexible to be successful.
Try to ignore the AFK's, Ragers, Griefers, and clueless players. Solo queue is rough. Bronze and Silver are no different from each other in my experience. I hear Gold isn't any better either.