It may be chivalrous for a boy to walk his date to her door, but that by no means makes somebody who doesn’t a “boor”, “ill-mannered”, “an absolute bulvanish naar”, etc. Really, it’s just not (or at least shouldn’t be) that big of a deal.
eclipse:
“To let a girl fall and hurt herself is being a chosid shoiteh.”
Debatable. The Gemara says that one who does not save a drowning woman is indeed a chasid shoteh, but that’s only because pikuach nefesh is dochah 610/613 of the mitzvos. However, a couples of scratches and bruises is not necessarily a good enough reason not be shomer negiah. (Note: As always, all halacha li’maseh shailos should be addressed to a competent possek.)