This is less of a headcanon and more of a thought I’ve been mulling for ages and ages. But yes, either way, it’s still long and rambly. Lol. Saddle up, kids, this post is gonna go on forever.
Misty was not very close with her sisters before leaving home. We see this in The Water Flowers of Cerulean City and The Misty Mermaid and even a bit in Gotta Catch Ya Later, as well as in flashbacks from Princess Vs Princess and Cerulean Blues, but yeah. It wasn’t like it was abuse or neglect or anything but… there was a bridge, a gap, a wall, that had clearly been placed there.
“Yang wake up! Today’s the big day!” Ruby cheered at seven in the morning, “I never thought it was going to happen but we’ve finally been selected to get our first Pokemon! Come on Yang why aren’t you buzzing about it! It’s such a big day I’m surprised you could sleep!”