What are structures really used for?

Question

C++ / C#

Good evening! What are structs really used for in C++?

Answer 1

For logical grouping of data in one entity, when the possibilities of classes are redundant, for example, the result of a query in the database.

Answer 2

A struct in C++ differs from a class only in visibility by default: a struct has it public, a class has it private. Everything else is the same.