The different parts of the writing process feel like different countries to me. The etiquette and customs of one country is extremely different from the next. In the early drafts, I include everything that falls into my head and I love it all. I could never cut out a character at that stage.
When I get to later drafts, that changes. The only thing that matters is what works best for the story. if I fall in love a character and she doesn’t work in the story, she’s gets cut. I can always send her flowers, take her to the movies, or go out for coffee with her. But if she isn’t a vital thread in the fabric of the story, out she goes.