I use Hololive as a way to ensure my female friend doesn't develop any feelings for me (as I have none for her).
I figure, even though I'm playing video games and board games regularly with her, and going shopping, out to coffee, and to the movies with her, if I show her my photos with kigurumis, the concerts, and my plushie collection, she'll think I'm a loser and a cteep enough that we can just stay friends.
She's over 30 and a cripple, so it's hard work, but I think it's working.
