There is a difference in Skill between Bronze 3 and below, and silver 5.
Bronze 1 and 2 are just as skilled as SIlver 5 players usually. Some of you guys may lol at this, but there is a difference between low bronze and high bronze to silver. I've climbed From Bronze to Silver nearly over five times since playing this game. The difference is sudden, sharp and noticeable.
In Bronze 3 and anything below it, you can pick any early game jungler and just spam ganks getting kills everyhere, whenever you feel like it. In that elo, you don't even have to worry about farming the jungle much when you could just farm champions. The death counts are also much bigger in Bronze vs SIlver. In low Bronze people stuggle to barely get 90 cs by 20 minutes.
Another difference is that in Bronze, you don't have to dodge skillshots most of the time. You can just move left to right repeatedly and not get hit. In Low bronze, you don't have to lead skillshots at players usually, you can just aim directly at them and they will get it by them. If you try to lead/predict you will probably miss your skill-shots against these players. Overall, people don't farm much in Bronze.