#voidscream

24th century Klingons are basically party vikings - drinking, laughing, roughhousing, etc. - and Worf is an absolutely joyless prude, who is so allergic to the concept of a good time that he commits ecoterrorism on his honeymoon.

Worf never had much of a chance to live and experience his culture in an organic way. Everything he knows about being a Klingon comes from books. He clings to an ossified, rigid conception of Klingon-ness because that's all he has.

There's this one exchange between Worf and Guinan in TNG that perfectly sums up the differences between Worf and Other Klingons:

"GUINAN: I've seen you laugh. I like it. WORF: Klingons do not laugh. GUINAN: Oh yes they do. Absolutely they do. You don't. But I've heard some Klingon belly laughs that would curl your hair. [...] WORF: I do not laugh because I do not feel like laughing. GUINAN: Other Klingons feel like laughing. What does that say about you? WORF: Perhaps it says that I do not feel like other Klingons."