Most stories don't care too much about realism anyway, same with this one. Fictional stories aren't meant to be realistic anyway so it's best to not think too much about it. And some questions better remain unanswered or in your imagination.
As for the rest, thank you for the deep dive analysis 😂
Trust me, I read everything. I'll still try to flesh out the characters and story as best as I can. But don't expect it to be realistic all the time XD