Emojis diversity

For questions about emoji implementations such as the particular graphics used by each vendor, ask the Unicode emoji committee; the people that create the encoding.

Based on the following link, skin tones are supported with the teachers emojis.

https://www.unicode.org/emoji/charts/full-emoji-modifiers.html

BDesulme wrote:

Why is it that not all emojis representing ppl can have several skin color option... for example teachers are all yellow....?

It's possible Apple needs to update its Emoji font. You can let them know via

http://www.apple.com/feedback