She makes a valid point IMO.
It's not about growth, personal growth, she means there's always a queue of new start-ups who haven't got the bottle to go out door knocking, cold calling. It surprises me too, the amount of threads on here that start something like 'What do you say when you knock?'
It's never bothered me personally and nowadays I'm very comfortable should I ever knock uninvited. Like you James I lead the conversation, my confidence is a good seller I believe. But there's always going to be guys, that don't have the confidence to sell themselves coming through the pipeline, crapping themselves when they go door knocking. Perhaps they 'know' window cleaning is a 'wasters' job and all they're doing is selling themselves as wasters, which isn't going to make anyone feel great.