Value Type Inheritance
Question
Does a value type support inheritance?
Short interview answer
No. A struct cannot inherit from another class or struct and cannot be a base class. It can implement interfaces.
Detailed answer
All value types derive from System.ValueType in the type system, but user-defined structs are implicitly sealed:
public readonly record struct Point(int X, int Y); // Valid value type.
// public struct ColoredPoint : Point { } // invalid: a struct cannot derive from Point.
This prevents a struct inheritance hierarchy. When a value type needs to satisfy shared behavior, define and implement an interface instead.