Naturally I have taken advice from other people. I even took advice from the young woman who became my wife 30+ years ago, but I did no more than consider it. The friend who introduced us shortly afterward told me that she had a boyfriend and discouraged my interest in her, fearing I would get hurt. I didn't disbelieve him on the facts (she did have a boyfriend) but I decided she liked me and forged ahead. On things I don't care about I can be persuaded easily enough to go along. Wimpiness doesn't mean you won't argue about a restaurant or something, it means you won't stick up for yourself on important things. The uncle I mentioned in a different post was able to assert himself on where to eat or what movie they should see, but he always gave way on the big decisions.
I have seen arguments that Bingley giving way on this matter is a kind of thoughtfulness, but I disagree with those. He was a wimp to give up on Jane.