You should switch to Windows, Microsoft got you covered[1].
[1]: https://www.betaarchive.com/wiki/index.php/Microsoft_KB_Arch...
Why would you want emojis in your password? It's a piece of text not meant to be seen, emojis are meant to be seen. Just randomly generate some characters and get on with your life. I don't understand why you care about this at all, it's such a pointless thing to complain about.
Probably because that's just unnecessary. A few dozen characters is plenty, anything beyond that is just excessive.