I've been writing my whole life, and when we were younger, I used to read my stories to my two little sisters. Sometimes, the older one would start to write her own version of the story. Usually, so that she didn't "copy" me, she'd change the names of the characters, but other than that, same story. I thought it was cute. She used to do a LOT of things in imitation of me, most of which drove me crazy. This one never bothered me.
But eventually she outgrew that. Stopped "borrowing" my plots, stopped re-naming my characters, and so far as I knew, stopped writing entirely.
I live 800 miles away, so usually I don't get to hear all the little details of her life. I'll ask "How's school going?" "good." "What have you been up to lately?" "Stuff." Mostly, when we talk, I'm the one doing most of...