I routinely code tree traversals at my work, so my judgement may be clouded here, so I am genuinely curious here to know if most people here think that it is unreasonable to expect someone to code a BST from scratch.

In my opinion, BSTs are one of the easier things in programming, with a complexity that is maybe only a little above a for-loop. Most often, in real world, the more complex stuff happens in the business logic, or API contracts, or that sort of thing outside tree traversals.

I never got the point of it, but I see it as a ritual...