Firstly, chivalry is not something taught in school. If a boy has no manners, that's down to his parenting. Dont go out with someone who is boorish. But if he's polite enough, but just doesn't happen to treat you like a fragile rose, don't panic or give up on him! Men nowadays are scared to be too gentlemanly towards women in case they're accused of being patronising, and of not treating women as equals. they're somewhat at a loss, so be tolerant.