Difference between std::remove and erase for vector?

Question

I have a doubt that I would like to clarify in my head. I am aware of the different behavior for std::vector between erase and std::remove

Answer 1

I think it has to do with needing direct access to the vector itself to be able to resize it. std::remove only has access to the iterators, so it has no way of telling the vector "Hey, you now have fewer elements".

See yves Baumes answer as to why std::remove is designed this way.