People use UTF-32 sometimes because computers have 32-bit ints but not 24-bit ints. If you want a single primitive type to represent a code point, that's gonna

People use UTF-32 sometimes because computers have 32-bit ints but not 24-bit ints. If you want a single primitive type to represent a code point, that's gonna be a 32-bit int. If you make an array of those, that's UTF-32.