Veganism is not a "sacrifice." It is a joy.
Does veganism require a “sacrifice”? Yes. It requires that you give up that which you never had any right to in the first place.
I find it very annoying that so many animal advocates talk about the difficulty of being vegan. Many animal advocates are inclined to make the issue their suffering and not the animals' suffering, and I suppose that accounts for part of the reason that veganism is portrayed as such a "sacrifice." And many animal advocates are not vegans, or are "flexible vegans," which means that they do not observe veganism at all or not consistently, and emphasizing the supposed difficulty of veganism is part of justifying their own behavior.