Girls smoke and drink and love playing mahjong and billiards.

No, don't have the idea that such a girl is actually pure or kind, let alone want to change her or even want to save her. It's simply not worth it. It's naive to think so. It doesn't mean that such a girl is definitely not good, but such a girl is definitely immature or has some hidden defects in her personality. A good girl with a healthy mind will not arrange her life like this. This must have something to do with her family background and growing experience. Don't simply think that such a girl is attractive, and it is not impossible to fall in love with her. Maybe this experience will also help you, let you know how to look at people, especially women, and let you know what kind of woman is right for you, what kind of woman is a good woman, and what kind of woman can live with you.