Ma Nishtana HaDor HaZeh Mikol HaDoros?
Yeshivas have always had problems with smoking and drinking. Vaping is a new thing now that smoking isn’t as common anymore. I remember one Yeshiva I visited sometime in the mid-90s where outside the back door of the Beis Medrash was a massive pile of cigarette butts because of all the bachurim would stand their to take a smoke break during seder. One Yeshiva had a joke about Shavuos all the windows were lined with still lit cigarettes standing on their filters so they will go out on their own because you can’t stub on Yom Tov.
And the Rebbeim spoke about it. A lot in many circumstances. One Rosh Yeshiva I knew used to say that he would never allow a shidduch where the boy smoked. It worked somewhat. Smoking is a little better now than it used to be.