This is a somewhat lengthy reminder that could have been shortened to a reply, until multiple mythological beings came to mind beyond the first handful.
Initially, someone's rant about an encounter with a troll and their responses inspired my thoughts. Such as how if therians were physically their identities that they would not be able to function in the world as they do in human form. This is true, other than for any therians who are of the simian/ape branch of the evolutionary tree.
For those of us who are mythical in identity, functioning in the human world might not be an issue, so long as we ignore various prejudices and fears from the humans. Or that those problems don't exist due to us having never been ‘mythical’ and the human world included our existence within it over the millennia.
Many mythical Otherkin have human-like bodies, in part or in full. Elves are possibly the very first Otherkin of the community, and are the most human-like of all. They could blend into human society without much notice. Functioning in this world would not be an issue. Djinn (and all other fire/air spirits) could blend in well so long as they shape-shifted fully into human form. Maybe the same for nymphs and other nature spirits, but I am not as well-read on them to know their form-shifting abilities.
And then there are those such as myself and my friends. Centaurs, satyrs, fauns, mermaids, selkies, and minotaurs. Some might use the term "hybrid" but I shy away from using it, or even thinking it. Hybrid tends to separate our forms into the things we resemble, instead of simply accepting us as the form we represent by our original type.
Anyway, land-based types shouldn't have much difficulty in a human world. For those of you whose home is in the water, you can at least get tools that are made for underwater use without needing customized equipment.
You dragons? Well, you're all intelligent enough that you could ask (if not intimidate) humans into creating tools you could work with your claws (such as keyboards.) Everything else would probably just as easy to have humans do it for you. I'm sure y'all would like that :-)
If I've missed anyone (and I am quite sure I have) I apologize, because I'm certainly no expert on mythology and have not read & memorized all of the content at theoi.com. Imagine, too, that there are many Otherkin who can fit within something named here (such as the cervitaur, or deer-centaur.) If you like, go ahead and name your mythical kintype which would not have much problem functioning in a human world, or in your own everyday life. Include it in the tags as well :-)