Even if there is a chiyuv to get drunk, the way it is done is very often incorrect.
The mitzvah is to drink wine. Not whiskey, beer, or anything else. Just wine.
The mitzvah only applies during the Purim seudah. It definitely doesn’t apply Purim night after Megillah reading. Additionally, one must be able to recite Birchas Hamazon after the seudah, and also daven Maariv. If either of those will be affected by the drinking, it is better not to drink at all (see Biur Halacha 695).
Many yeshivos hold a mesibah on Purim night, after Megillah reading. I’ve seen boys get completely drunk. Every year, hundreds of boys are taken to hospitals because of alcohol poisoning. A friend of mine who was a Hatzalah member told me that Purim is their busiest day of the year. This is definitely 100% wrong – drinking should never become life threatening!
If Rabbeim want to model proper drinking, then they should invite the boys over for the seudah, and show them how it is. I once was at my Rebbe’s house (not R’ Bender, another Rebbe from Darchei) just after he finished his seudah. His wife mentioned that she needed something from the store, and he apologized to her. “I drank just enough to feel a bit dizzy, so I can’t drive. I’m so sorry! Are you able to get it yourself?” That is how a Rebbe shows a talmud the proper way to act.