A lot more goes into selecting and designing an emoji than you might
expect. For some in-depth glimpses into the factors designers weigh when
expanding the set of emoji characters, check out these videos on
our Unicode Consortium YouTube channel:

When a Merperson is a Merman: Using Gender-Inclusive Design for
Codepoints Which Don’t Specify Gender

Race is Not a Skin Tone. Gender is Not a Haircut.

Hanmoji: Analyzing Chinese Radicals to Determine Semantic Gaps in Emoji

Over 140,000 characters are available for adoption
to help the Unicode Consortium’s work on digitally disadvantaged languages