> You have to learn to deal with conflict at some point.

Some become conditioned into being doormats for the rest of their lives, just to avoid conflict. IMO, it's a very bad thing.

They become doormats when their parents deal with everything for them, not the other way around.

That's a very broad brush you're painting with, and I disagree with it. A lot of bullying victims cope by withdrawing, avoiding social contact in unfamiliar situations and going to great lengths to avoid conflict.