> In fairness, "just use Rc<>/Arc<>/clone()/etc" is common advice from the Rust community in response to criticism that the borrow checker puts an undue burden on code paths which aren't performance sensitive.

I hypothesize that this mostly comes from a laziness in response as it's an easy response to give to people who are used to having a garbage collector. I come from the C world (still learning Rust) and every time I see one of these pieces of advice given I'm forced to facepalm.