STL tried hard to abstract pointer manipulation semantic of low-level C and apply it everywhere whether it fit or not. This pointer heritage inevitably lead to

STL tried hard to abstract pointer manipulation semantic of low-level C and apply it everywhere whether it fit or not. This pointer heritage inevitably lead to misfeatures like invalidation of iterators under container mutations or the need to have access both to the iterator and its container to implement things like vector::erase(). Other languages and runtimes use the notion of an iterator or cursor that is alone enough to perform all looping-like operations on the container including efficient erase() and can cheaply (so it is ok to have that in production) or even with good optimizing compiler at zero cost provide protection against container mutations.